{"title":"Hanna Marine Testing Equipment","description":"\u003cp\u003e\u003cimg src=\"https:\/\/ecce-terram.com\/wp-content\/uploads\/2024\/06\/marine-ecosystem-health.jpg\" alt=\"Biodiversity Beneath the Waves: Exploring Marine Life Diversity\"\u003e\u003c\/p\u003e","products":[{"product_id":"groline-hi981030-soil-ph-tester","title":"Hanna GroLine HI981030 Soil pH Tester - Direct Soil Testing Meter","description":"\u003ch2\u003eHanna GroLine HI981030 Soil pH Tester - Direct Soil pH Measurement for Agriculture \u0026amp; Gardening\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eHanna GroLine HI981030 Soil pH Tester\u003c\/strong\u003e brings simplicity and precision to soil pH testing for environmental and agricultural applications. Designed specifically for taking direct pH measurements in soil and soil slurries, this pocket-sized tester features a specialized built-in probe with an open reference junction, conical glass tip, and removable sleeve design—making it the ideal tool for spot-checking soil pH in gardens, farms, greenhouses, and research environments.\u003c\/p\u003e\n\n\u003ch3\u003eComplete Kit - Ready to Test\u003c\/h3\u003e\n\u003cp\u003eYour HI981030 arrives equipped with everything needed for successful testing right out of the box: tester with built-in probe, pH 4.01 and 7.01 buffer sachets, cleaning solutions for soil and humus deposits, storage solution, electrode fill solution, and CR2032 battery. Start measuring soil pH immediately upon arrival.\u003c\/p\u003e\n\n\u003ch3\u003eKey Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Soil Testing:\u003c\/strong\u003e Specialized probe designed for penetrating soil and soil slurries\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional Accuracy:\u003c\/strong\u003e ±0.05 pH accuracy for reliable soil analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePocket-Sized Portability:\u003c\/strong\u003e Compact design ideal for on-the-go field testing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong Battery Life:\u003c\/strong\u003e Up to 1000 hours continuous use on CR2032 Li-ion battery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimple Operation:\u003c\/strong\u003e Single-button operation with large LCD display\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Kit:\u003c\/strong\u003e Includes all necessary solutions and batteries to start testing immediately\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecialized Soil Testing Probe\u003c\/h3\u003e\n\u003cp\u003eThe HI981030 features a carefully engineered built-in probe designed specifically for direct soil pH measurements in environmental and agricultural testing applications.\u003c\/p\u003e\n\n\u003ch4\u003eConical Glass Tip\u003c\/h4\u003e\n\u003cp\u003eThe conical-shaped tip design allows for easy penetration into soil and soil slurries, enabling direct measurements without the need for sample preparation or dilution.\u003c\/p\u003e\n\n\u003ch4\u003eUnique Open Junction with Removable Sleeve\u003c\/h4\u003e\n\u003cp\u003eWhen readings become slow, simply remove the sleeve for quick cleaning and fresh electrolyte replacement. A clean probe with fresh reference electrolyte improves performance and extends the life of the tester significantly.\u003c\/p\u003e\n\n\u003ch4\u003ePVDF Body Construction\u003c\/h4\u003e\n\u003cp\u003eThe probe body is constructed from polyvinylidene fluoride (PVDF), a durable plastic resistant to most chemicals and solvents used for disinfection, including chlorine (bleach). This ensures long-term durability in demanding agricultural environments.\u003c\/p\u003e\n\n\u003ch3\u003eProfessional Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStability Indicator:\u003c\/strong\u003e Onscreen indicator ensures the highest level of confidence in your results\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic Calibration:\u003c\/strong\u003e One or two-point calibration with automatic buffer recognition\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic Temperature Compensation:\u003c\/strong\u003e 0 to 50°C range for accurate readings in varying conditions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelectable Auto-Off:\u003c\/strong\u003e 8 minutes, 60 minutes, or disabled to prolong battery life\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery Level Indicator:\u003c\/strong\u003e Blinking icon alerts you when it's time to change the battery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge LCD Display:\u003c\/strong\u003e At-a-glance readings from any angle\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eComplete Solutions Package\u003c\/h3\u003e\n\n\u003ch4\u003eCleaning Solution for Soil and Humus Deposits\u003c\/h4\u003e\n\u003cp\u003eYour tester includes specialized cleaning solution engineered to keep your electrode free from organic materials found in soil. This concentrated combination of detergents cleans quickly and effectively, keeping your tester in optimum condition.\u003c\/p\u003e\n\n\u003ch4\u003epH 4 \u0026amp; 7 Buffer Sachets\u003c\/h4\u003e\n\u003cp\u003eCorrect calibration buffers are critical for accurate pH measurements. We include starter buffers to get you going. The single-use sachets are individually sealed so you use fresh buffer each time you calibrate.\u003c\/p\u003e\n\n\u003ch4\u003eStorage Solution\u003c\/h4\u003e\n\u003cp\u003eProper electrode storage ensures reliable measurements and long electrode life. Our storage solution is specially formulated to keep the pH glass hydrated while minimizing organic growth.\u003c\/p\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAgricultural soil testing and fertility management\u003c\/li\u003e\n\u003cli\u003eGarden and lawn pH monitoring\u003c\/li\u003e\n\u003cli\u003eGreenhouse and nursery soil analysis\u003c\/li\u003e\n\u003cli\u003eEnvironmental soil testing and remediation\u003c\/li\u003e\n\u003cli\u003eCompost pH monitoring\u003c\/li\u003e\n\u003cli\u003eResearch and educational applications\u003c\/li\u003e\n\u003cli\u003eTurf management and sports field maintenance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI981030\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003epH Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.00 to 12.00 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003epH Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.01 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003epH Accuracy (@25°C)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±0.05 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003epH Calibration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAutomatic, one or two-point\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Compensation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAutomatic, 0 to 50°C (32 to 122°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAutomatic Shut-Off\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSelectable: 8 min, 60 min, or disabled\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCR2032 Li-ion (included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery Life\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApproximately 1000 hours continuous use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Environment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 to 50°C (32 to 122°F); RH 95% max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e51 x 151 x 21 mm (2.0 x 5.9 x 0.9\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e46 g (1.62 oz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHI981030 GroLine Soil pH Tester with built-in probe\u003c\/li\u003e\n\u003cli\u003epH 4.01 buffer solution liquid sachets (2)\u003c\/li\u003e\n\u003cli\u003epH 7.01 buffer solution liquid sachets (2)\u003c\/li\u003e\n\u003cli\u003eCleaning solution for soil deposits\u003c\/li\u003e\n\u003cli\u003eCleaning solution for humus deposits\u003c\/li\u003e\n\u003cli\u003eElectrode storage solution\u003c\/li\u003e\n\u003cli\u003eElectrode fill solution\u003c\/li\u003e\n\u003cli\u003e13 mL dropper\u003c\/li\u003e\n\u003cli\u003eCR2032 Li-ion battery\u003c\/li\u003e\n\u003cli\u003eInstruction manual\u003c\/li\u003e\n\u003cli\u003eQuality certificate\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Choose the GroLine HI981030?\u003c\/h3\u003e\n\u003cp\u003eEngineered by Hanna Instruments specifically for soil testing applications, the HI981030 delivers professional-grade accuracy in a portable, easy-to-use package. The specialized conical tip and removable sleeve design make it ideal for direct soil measurements without sample preparation. Perfect for farmers, gardeners, agronomists, environmental scientists, and anyone who needs reliable soil pH data in the field.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Hanna Instruments (GroLine Series)\u003cbr\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Romania\u003cbr\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 080009810305\u003cbr\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e HI981030\u003c\/p\u003e","brand":"Groline","offers":[{"title":"Default Title","offer_id":40894930616407,"sku":"HI981030","price":154.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/files\/groline-soil-ph-tester-hi981030.webp?v=1750427160"},{"product_id":"halo2-hi9810302-wireless-soil-ph-tester","title":"Hanna HALO2 HI9810302 Wireless Soil pH Tester - Bluetooth Soil Testing with App","description":"\u003cdiv id=\"hs_cos_wrapper_product_details\" class=\"hs_cos_wrapper hs_cos_wrapper_widget hs_cos_wrapper_type_module\" data-hs-cos-general-type=\"widget\" data-hs-cos-type=\"module\"\u003e\n\u003csection id=\"product-details\" class=\"grid-container product-details\" data-product-details=\"\"\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003cdiv data-product-description=\"\"\u003e\n\u003cdiv id=\"hs_cos_wrapper_product_details_\" class=\"hs_cos_wrapper hs_cos_wrapper_widget hs_cos_wrapper_type_inline_rich_text\" data-hs-cos-general-type=\"widget\" data-hs-cos-type=\"inline_rich_text\" data-hs-cos-field=\"product_description\"\u003e\n\u003cdiv data-canvas-width=\"402.5088822857142\"\u003eThe HALO2 GroLine Wireless pH Tester (HI9810302) is designed to bring simplicity to pH testing of soil for environmental and agricultural purposes.\u003c\/div\u003e\n\u003cdiv data-canvas-width=\"402.5088822857142\"\u003e\n\u003cul\u003e\n\u003cli\u003eOpen-source Bluetooth allows easy integration into current data logging systems\u003c\/li\u003e\n\u003cli\u003eIP65 water resistant protection\u003c\/li\u003e\n\u003cli\u003eSpecialized electrode for spot checking the pH of soil and soil slurries\u003c\/li\u003e\n\u003cli\u003eEquipped with everything you need for successful testing right out of the box\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e\u003cem\u003eGroLine is specially designed for testing a wide array of growth mediums including: coco fiber, organic soil, rock wool, clay balls, recycled plastic balls, bog, hydroponic systems and more!\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"hs_cos_wrapper_widget_1563453768118\" class=\"hs_cos_wrapper hs_cos_wrapper_widget hs_cos_wrapper_type_module\" data-hs-cos-general-type=\"widget\" data-hs-cos-type=\"module\"\u003e\n\u003csection class=\"banner--product-col2-details grid-container\"\u003e\n\u003cdiv class=\"col2-detail-group grid-x grid-padding-x grid-padding-y align-right\"\u003e\n\u003cdiv class=\"cell small-12  border-after--blue-wide\"\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/www.hannainst.com\/hs-fs\/hubfs\/001-website\/images\/halo-hanna-lab-ipad-iphone.jpg?width=400\u0026amp;name=halo-hanna-lab-ipad-iphone.jpg\" alt=\"Hanna Instruments - Halo pH Probe with Bluetooth Smart Technology\" width=\"400\" srcset=\"https:\/\/www.hannainst.com\/hs-fs\/hubfs\/001-website\/images\/halo-hanna-lab-ipad-iphone.jpg?width=200\u0026amp;name=halo-hanna-lab-ipad-iphone.jpg 200w, https:\/\/www.hannainst.com\/hs-fs\/hubfs\/001-website\/images\/halo-hanna-lab-ipad-iphone.jpg?width=400\u0026amp;name=halo-hanna-lab-ipad-iphone.jpg 400w, https:\/\/www.hannainst.com\/hs-fs\/hubfs\/001-website\/images\/halo-hanna-lab-ipad-iphone.jpg?width=600\u0026amp;name=halo-hanna-lab-ipad-iphone.jpg 600w, https:\/\/www.hannainst.com\/hs-fs\/hubfs\/001-website\/images\/halo-hanna-lab-ipad-iphone.jpg?width=800\u0026amp;name=halo-hanna-lab-ipad-iphone.jpg 800w, https:\/\/www.hannainst.com\/hs-fs\/hubfs\/001-website\/images\/halo-hanna-lab-ipad-iphone.jpg?width=1000\u0026amp;name=halo-hanna-lab-ipad-iphone.jpg 1000w, https:\/\/www.hannainst.com\/hs-fs\/hubfs\/001-website\/images\/halo-hanna-lab-ipad-iphone.jpg?width=1200\u0026amp;name=halo-hanna-lab-ipad-iphone.jpg 1200w\" sizes=\"(max-width: 400px) 100vw, 400px\" data-mce-src=\"https:\/\/www.hannainst.com\/hs-fs\/hubfs\/001-website\/images\/halo-hanna-lab-ipad-iphone.jpg?width=400\u0026amp;name=halo-hanna-lab-ipad-iphone.jpg\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv data-details=\"\" class=\"cell small-12 large-auto\"\u003e\n\u003cdiv data-detail-item=\"\" class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003eUniversal Connectivity\u003c\/h4\u003e\n\u003cp\u003eThe open-source Bluetooth® protocol allows easy integration with the Hanna Lab App and current Laboratory Information Management System (LIMS). The HALO2 GroLine Wireless pH Tester (HI9810302) is GLP compliant.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-detail-item=\"\" class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003eIP65 Water Resistant Protection\u003c\/h4\u003e\n\u003cp\u003eThe housing of the HALO2 GroLine Soil pH Tester is rated IP65 meaning it has a high level of protection against particles and dust, and protection against the ingress of water from jets. This makes it ideal for outdoor use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-detail-item=\"\" class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003ePocket-Sized\u003c\/h4\u003e\n\u003cp\u003eThe compact size makes the Soil pH Tester ideal for on-the-go testing. A large LCD display provides at-a-glance readings from any angle and single button operation streamlines the testing process for any user.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col2-detail-group grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12  border-after--blue-wide\"\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto small-order-1 large-order-2\"\u003e\n\u003cdiv\u003e\u003cimg height=\"574\" src=\"https:\/\/www.hannainst.com\/hs-fs\/hubfs\/001-website\/images\/product\/HI9810302\/HI9810302_HALO2_Soil-pH-Tester_Tip-Sleeve-Off.jpg?width=700\u0026amp;name=HI9810302_HALO2_Soil-pH-Tester_Tip-Sleeve-Off.jpg\" alt=\"HI9810302_HALO2_Soil-pH-Tester_Tip-Sleeve-Off\" width=\"574\" srcset=\"https:\/\/www.hannainst.com\/hs-fs\/hubfs\/001-website\/images\/product\/HI9810302\/HI9810302_HALO2_Soil-pH-Tester_Tip-Sleeve-Off.jpg?width=350\u0026amp;name=HI9810302_HALO2_Soil-pH-Tester_Tip-Sleeve-Off.jpg 350w, https:\/\/www.hannainst.com\/hs-fs\/hubfs\/001-website\/images\/product\/HI9810302\/HI9810302_HALO2_Soil-pH-Tester_Tip-Sleeve-Off.jpg?width=700\u0026amp;name=HI9810302_HALO2_Soil-pH-Tester_Tip-Sleeve-Off.jpg 700w, https:\/\/www.hannainst.com\/hs-fs\/hubfs\/001-website\/images\/product\/HI9810302\/HI9810302_HALO2_Soil-pH-Tester_Tip-Sleeve-Off.jpg?width=1050\u0026amp;name=HI9810302_HALO2_Soil-pH-Tester_Tip-Sleeve-Off.jpg 1050w, https:\/\/www.hannainst.com\/hs-fs\/hubfs\/001-website\/images\/product\/HI9810302\/HI9810302_HALO2_Soil-pH-Tester_Tip-Sleeve-Off.jpg?width=1400\u0026amp;name=HI9810302_HALO2_Soil-pH-Tester_Tip-Sleeve-Off.jpg 1400w, https:\/\/www.hannainst.com\/hs-fs\/hubfs\/001-website\/images\/product\/HI9810302\/HI9810302_HALO2_Soil-pH-Tester_Tip-Sleeve-Off.jpg?width=1750\u0026amp;name=HI9810302_HALO2_Soil-pH-Tester_Tip-Sleeve-Off.jpg 1750w, https:\/\/www.hannainst.com\/hs-fs\/hubfs\/001-website\/images\/product\/HI9810302\/HI9810302_HALO2_Soil-pH-Tester_Tip-Sleeve-Off.jpg?width=2100\u0026amp;name=HI9810302_HALO2_Soil-pH-Tester_Tip-Sleeve-Off.jpg 2100w\" sizes=\"(max-width: 700px) 100vw, 700px\" data-mce-src=\"https:\/\/www.hannainst.com\/hs-fs\/hubfs\/001-website\/images\/product\/HI9810302\/HI9810302_HALO2_Soil-pH-Tester_Tip-Sleeve-Off.jpg?width=700\u0026amp;name=HI9810302_HALO2_Soil-pH-Tester_Tip-Sleeve-Off.jpg\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv data-details=\"\" class=\"cell small-12 large-auto small-order-2 large-order-1\"\u003e\n\u003cdiv data-detail-item=\"\" class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003eUnique Open Junction with Removable Sleeve\u003c\/h4\u003e\n\u003cp\u003eWhen the readings become slow, simply remove the sleeve for quick cleaning and a new reference electrolyte. This will improve performance and extend the life of the tester.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-detail-item=\"\" class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003ePVDF Body\u003c\/h4\u003e\n\u003cp\u003ePolyvinylidene fluoride (PVDF) is a durable plastic that is resistant to most chemicals and solvents used for disinfection, including chlorine (bleach).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-detail-item=\"\" class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003eConical Glass Tip\u003c\/h4\u003e\n\u003cp\u003eThe conical-shaped tip design allows for penetration into soil and soil slurries.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col2-detail-group grid-x grid-padding-x grid-padding-y align-right\"\u003e\n\u003cdiv class=\"cell small-12\"\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/www.hannainst.com\/hs-fs\/hubfs\/001-website\/images\/product\/HI9810302\/Web0HI9810302_HALO2_Soil-pH-Tester_CleaningSachet.jpg?width=700\u0026amp;name=Web0HI9810302_HALO2_Soil-pH-Tester_CleaningSachet.jpg\" alt=\"Web0HI9810302_HALO2_Soil-pH-Tester_CleaningSachet\" width=\"700\" srcset=\"https:\/\/www.hannainst.com\/hs-fs\/hubfs\/001-website\/images\/product\/HI9810302\/Web0HI9810302_HALO2_Soil-pH-Tester_CleaningSachet.jpg?width=350\u0026amp;name=Web0HI9810302_HALO2_Soil-pH-Tester_CleaningSachet.jpg 350w, https:\/\/www.hannainst.com\/hs-fs\/hubfs\/001-website\/images\/product\/HI9810302\/Web0HI9810302_HALO2_Soil-pH-Tester_CleaningSachet.jpg?width=700\u0026amp;name=Web0HI9810302_HALO2_Soil-pH-Tester_CleaningSachet.jpg 700w, https:\/\/www.hannainst.com\/hs-fs\/hubfs\/001-website\/images\/product\/HI9810302\/Web0HI9810302_HALO2_Soil-pH-Tester_CleaningSachet.jpg?width=1050\u0026amp;name=Web0HI9810302_HALO2_Soil-pH-Tester_CleaningSachet.jpg 1050w, https:\/\/www.hannainst.com\/hs-fs\/hubfs\/001-website\/images\/product\/HI9810302\/Web0HI9810302_HALO2_Soil-pH-Tester_CleaningSachet.jpg?width=1400\u0026amp;name=Web0HI9810302_HALO2_Soil-pH-Tester_CleaningSachet.jpg 1400w, https:\/\/www.hannainst.com\/hs-fs\/hubfs\/001-website\/images\/product\/HI9810302\/Web0HI9810302_HALO2_Soil-pH-Tester_CleaningSachet.jpg?width=1750\u0026amp;name=Web0HI9810302_HALO2_Soil-pH-Tester_CleaningSachet.jpg 1750w, https:\/\/www.hannainst.com\/hs-fs\/hubfs\/001-website\/images\/product\/HI9810302\/Web0HI9810302_HALO2_Soil-pH-Tester_CleaningSachet.jpg?width=2100\u0026amp;name=Web0HI9810302_HALO2_Soil-pH-Tester_CleaningSachet.jpg 2100w\" sizes=\"(max-width: 700px) 100vw, 700px\" data-mce-src=\"https:\/\/www.hannainst.com\/hs-fs\/hubfs\/001-website\/images\/product\/HI9810302\/Web0HI9810302_HALO2_Soil-pH-Tester_CleaningSachet.jpg?width=700\u0026amp;name=Web0HI9810302_HALO2_Soil-pH-Tester_CleaningSachet.jpg\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv data-details=\"\" class=\"cell small-12 large-auto\"\u003e\n\u003cdiv data-detail-item=\"\" class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003eCleaning Solution for Soil and Humus Deposits\u003c\/h4\u003e\n\u003cp\u003eYour HALO2 GroLine Soil pH Tester comes with cleaning solution that is engineered to keep your electrode free from organic materials found in soil. This concentrated combination of detergents cleans your tester quickly and effectively so that your tester stays in optimum condition.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-detail-item=\"\" class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003eEasy Calibration\u003c\/h4\u003e\n\u003cp\u003eHALO2 can be placed right into our calibration buffer sachets for easy calibration. Using a Hanna calibration sachet ensures your buffer is always fresh.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-detail-item=\"\" class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003eStorage Solution\u003c\/h4\u003e\n\u003cp\u003eProper storage of your electrode will ensure reliable measurements and a long electrode life. Our storage solution is specially formulated to keep the pH glass hydrated while minimizing organic growth. The HALO2 GroLine Soil Wireless pH Tester is designed to bring simplicity to pH testing of soil for environmental and agricultural purposes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification Name\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSku\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI9810302\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003epH Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.00 to 12.00 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003epH Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.01 or 0.1 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003epH Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±0.05 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003emV Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003epH\/mV conversion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003emV Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1 or 1 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.0 to 60.0 °C (32.0 to 140.0 °F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1 °C; 0.1 °F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±0.5 °C; ±0.9 °F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCalibration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to three points or four points *Automatic buffer recognition with Standard buffers Hanna (pH 1.68 *, 4.01, 7.01, 10.01) or NIST (pH 1.68 *, 4.01, 6.86, 9.18)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature compensation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAutomatic (ATC) or Manual (MTC) *\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eElectrode\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBody material - Polyvinylidene Fluoride (PVDF) Glass - Low Temperature (LT) Junction - Open Reference cell - Double, Ag\/AgCl Electrolyte - Gel (refillable) Tip \/ Shape - Conic, Ø 5 x 10 mm (Ø 0.19 x 0.39”) Outer diameter - 12 mm (0.47“) Length - 75 mm (2.95”)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3V Lithium – CR2032\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery life\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApproximately 1000 hours (500 hours with Bluetooth enabled)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnvironment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 to 50 °C (32 to 122 °F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCasing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIP65 ingress protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e51 x 150 x 21 mm (2.0 x 5.9 x 0.8”)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e45 g (1.6 oz.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupplied with\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003epH 4.01 buffer solution, 20 mL sachet (2 pcs.), pH 7.01 buffer solution, 20 mL sachet (2 pcs.), Cleaning solution for soil deposits, 20 mL sachet (1 pc.), Cleaning solution for humus deposits, 20 mL sachet (1 pc.), Electrode storage solution, 13 mL dropper bottle (1 pc.), Gelled bridge electrolyte, 13 mL dropper bottle (1 pc.), 3V Lithium battery – CR2032, \u0026amp; Instrument quality certificate and Instruction manual\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e* Available with Hanna Lab App ** Measuring outside the recommended operating temperature range may damage the gel electrolyte and void product warranty. Note: The tester can display measurements from –2.00 to 16.00 pH. Measurements outside of the pH range will flash. In this case assess the integrity of the tester and the type of measured sample.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Groline","offers":[{"title":"Default Title","offer_id":40894947557463,"sku":"HI9810302","price":164.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/files\/soil-halo2-hi9810302__57605.jpg?v=1715037737"},{"product_id":"hanna-hi98100-checker-plus-ph-tester-replaceable-electrode","title":"Hanna HI98100 Checker Plus pH Tester | Replaceable Electrode","description":"\u003cp\u003e\u003cstrong\u003eSimple, accurate, and affordable pH testing with the convenience of a replaceable electrode.\u003c\/strong\u003e The Hanna HI98100 Checker\u003csup\u003e®\u003c\/sup\u003e Plus pH Tester delivers reliable ±0.2 pH accuracy in a compact, pocket-sized design, making it ideal for environmental testing, field work, and laboratory applications where quick, dependable measurements are essential.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaceable electrode\u003c\/strong\u003e – HI1271 tapered electrode extends tester life indefinitely with simple screw-on replacement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e±0.2 pH accuracy\u003c\/strong\u003e – Professional-grade precision for reliable results\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExceptional battery life\u003c\/strong\u003e – Up to 1000 hours continuous use with CR2032 Li-ion battery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic calibration\u003c\/strong\u003e – One or two-point auto calibration with buffer recognition\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStability indicator\u003c\/strong\u003e – On-screen icon ensures confident, stable readings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; portable\u003c\/strong\u003e – Pocket-sized design perfect for on-the-go testing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete starter kit\u003c\/strong\u003e – Includes electrode, buffers, cleaning solution, storage solution, and battery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelectable auto-off\u003c\/strong\u003e – Conserves battery life if accidentally left on\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge LCD display\u003c\/strong\u003e – Easy-to-read from any angle\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Choose the Checker\u003csup\u003e®\u003c\/sup\u003e Plus?\u003c\/h3\u003e\n\u003cp\u003eThe HI98100 Checker\u003csup\u003e®\u003c\/sup\u003e Plus bridges the gap between disposable pH testers and expensive laboratory meters. With a replaceable electrode system, you get the accuracy and longevity of a professional pH meter at a fraction of the cost. When the electrode eventually wears out, simply unscrew it and replace it—no need to buy an entirely new tester.\u003c\/p\u003e\n\n\u003ch3\u003eReplaceable Electrode Advantage\u003c\/h3\u003e\n\n\u003ch4\u003eHI1271 Tapered pH Electrode\u003c\/h4\u003e\n\u003cp\u003eThe supplied HI1271 pH electrode is specifically designed for versatility and convenience:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTapered design:\u003c\/strong\u003e 103 mm long, tapering to 8 mm diameter at the sensing end\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerfect for small containers:\u003c\/strong\u003e Easily fits into test tubes, vials, and narrow-mouth bottles\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlastic body:\u003c\/strong\u003e Durable construction significantly reduces maintenance requirements\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo-hassle replacement:\u003c\/strong\u003e Simple screw-on\/screw-off design—no tools required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThis replaceable design means your investment is protected. Instead of discarding the entire tester when the electrode degrades, you simply replace the electrode and continue testing.\u003c\/p\u003e\n\n\u003ch3\u003eAdvanced Features for Confident Testing\u003c\/h3\u003e\n\n\u003ch4\u003eStability Indicator\u003c\/h4\u003e\n\u003cp\u003eAn on-screen stability indicator ensures the highest level of confidence in your results. The indicator monitors the reading and only disappears when a stable measurement is achieved, eliminating guesswork and ensuring accuracy.\u003c\/p\u003e\n\n\u003ch4\u003eAutomatic Calibration\u003c\/h4\u003e\n\u003cp\u003eThe HI98100 features automatic one or two-point calibration with buffer recognition. Simply immerse the electrode in standard buffer solutions, and the tester automatically recognizes and calibrates to the correct values.\u003c\/p\u003e\n\n\u003ch4\u003eSelectable Auto-Off\u003c\/h4\u003e\n\u003cp\u003eThe selectable auto-off feature prolongs battery life for peace of mind and energy savings if the meter is accidentally left on. Choose the setting that best fits your workflow.\u003c\/p\u003e\n\n\u003ch4\u003eExceptional Battery Life\u003c\/h4\u003e\n\u003cp\u003eThe included CR2032 Li-ion battery provides up to 1000 hours of continuous use—one of the longest battery lives in its class. A battery icon blinks on the display when it's time to change the battery, so you never miss a measurement.\u003c\/p\u003e\n\n\u003ch4\u003eLarge LCD Display\u003c\/h4\u003e\n\u003cp\u003eThe compact size makes the HI98100 Checker\u003csup\u003e®\u003c\/sup\u003e Plus ideal for on-the-go testing, while the large LCD display provides at-a-glance readings from any angle. Single-button operation streamlines the testing process for any user.\u003c\/p\u003e\n\n\u003ch3\u003eComplete Kit - Ready to Test\u003c\/h3\u003e\n\u003cp\u003eWe believe that buying a tester should be simple. Your HI98100 Checker\u003csup\u003e®\u003c\/sup\u003e Plus pH tester is equipped with everything you need for successful testing right out of the box:\u003c\/p\u003e\n\n\u003ch4\u003eHI1271 pH Electrode\u003c\/h4\u003e\n\u003cp\u003eTapered design with plastic body for versatile, low-maintenance testing.\u003c\/p\u003e\n\n\u003ch4\u003eElectrode Cleaning Solution\u003c\/h4\u003e\n\u003cp\u003eEngineered cleaning solution keeps your electrode free from buildup. This concentrated combination of detergents cleans your tester quickly and effectively so that your tester stays in optimum condition.\u003c\/p\u003e\n\n\u003ch4\u003epH 4 \u0026amp; 7 Buffer Sachets\u003c\/h4\u003e\n\u003cp\u003eWhen performing a pH calibration, it's important that the correct buffers are used. We include starter buffers to get you going. The single-use sachets are individually sealed so you use fresh buffer each time you calibrate.\u003c\/p\u003e\n\n\u003ch4\u003eStorage Solution\u003c\/h4\u003e\n\u003cp\u003eProper storage of your electrode will ensure reliable measurements and a long electrode life. Our storage solution is specially formulated to keep the pH glass hydrated while minimizing organic growth.\u003c\/p\u003e\n\n\u003ch4\u003eCR2032 Battery\u003c\/h4\u003e\n\u003cp\u003ePre-installed battery provides up to 1000 hours of continuous use.\u003c\/p\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEnvironmental water testing\u003c\/li\u003e\n\u003cli\u003eField sampling and analysis\u003c\/li\u003e\n\u003cli\u003eLaboratory quality control\u003c\/li\u003e\n\u003cli\u003eEducational and research labs\u003c\/li\u003e\n\u003cli\u003eAquaculture and aquariums\u003c\/li\u003e\n\u003cli\u003eHydroponics and agriculture\u003c\/li\u003e\n\u003cli\u003eFood and beverage testing\u003c\/li\u003e\n\u003cli\u003eWastewater monitoring\u003c\/li\u003e\n\u003cli\u003ePool and spa maintenance\u003c\/li\u003e\n\u003cli\u003eGeneral-purpose pH measurement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI98100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003epH Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.0 to 14.0 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003epH Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003epH Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±0.2 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCalibration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAutomatic, one or two-point\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003epH Electrode\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI1271 replaceable pH electrode (tapered, 103 mm, plastic body)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery Type \/ Life\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCR2032 Li-ion \/ Approximately 1000 hours continuous use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAuto-Off\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSelectable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLarge LCD with stability indicator and battery icon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCompact pocket-sized design\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14 oz (with electrode and battery)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHI98100 Checker\u003csup\u003e®\u003c\/sup\u003e Plus pH tester\u003c\/li\u003e\n\u003cli\u003eHI1271 replaceable pH electrode\u003c\/li\u003e\n\u003cli\u003epH 4.01 buffer solution sachets (2)\u003c\/li\u003e\n\u003cli\u003epH 7.01 buffer solution sachets (2)\u003c\/li\u003e\n\u003cli\u003eElectrode cleaning solution sachet\u003c\/li\u003e\n\u003cli\u003eElectrode storage solution\u003c\/li\u003e\n\u003cli\u003eCR2032 Li-ion battery\u003c\/li\u003e\n\u003cli\u003eInstruction manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eElectrode Care \u0026amp; Maintenance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e Always store electrode in the provided storage solution to keep the glass membrane hydrated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCleaning:\u003c\/strong\u003e Clean electrode regularly with the provided cleaning solution to remove buildup and maintain response time\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCalibration:\u003c\/strong\u003e Calibrate regularly using fresh buffer solutions for optimal accuracy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplacement:\u003c\/strong\u003e When electrode response becomes slow or readings drift, simply unscrew and replace with a new HI1271 electrode\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eReplacement Parts \u0026amp; Accessories\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHI1271:\u003c\/strong\u003e Replacement pH electrode\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHI70004P:\u003c\/strong\u003e pH 4.01 buffer solution\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHI70007P:\u003c\/strong\u003e pH 7.01 buffer solution\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHI70300:\u003c\/strong\u003e Storage solution for pH electrodes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHI700601:\u003c\/strong\u003e Electrode cleaning solution\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Hanna Instruments?\u003c\/h3\u003e\n\u003cp\u003eHanna Instruments is a global leader in analytical instrumentation with over 40 years of experience. The Checker\u003csup\u003e®\u003c\/sup\u003e Plus line represents Hanna's commitment to making professional-grade testing accessible and affordable. Trusted by professionals in over 140 countries, Hanna delivers accuracy you can count on.\u003c\/p\u003e\n\n\u003ch3\u003eWarranty \u0026amp; Support\u003c\/h3\u003e\n\u003cp\u003eThe HI98100 Checker\u003csup\u003e®\u003c\/sup\u003e Plus is backed by Hanna's quality guarantee and customer support. For technical assistance, calibration questions, or replacement electrode information, contact our expert support team.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":41060129603671,"sku":"HI98100","price":64.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/files\/checker-plus-ph-tester-hi98100_1__76438.jpg?v=1718914382"},{"product_id":"hanna-instruments-ph-orp-temperature-combo-tester","title":"Hanna HI98121 pH\/ORP\/Temperature Tester | Waterproof Combo Meter","description":"\u003cp\u003e\u003cstrong\u003eProfessional 3-in-1 waterproof tester for simultaneous pH, ORP, and temperature measurements.\u003c\/strong\u003e The Hanna HI98121 delivers laboratory-grade accuracy with 0.01 pH resolution, ±0.05 pH accuracy, and ±2 mV ORP precision, featuring a replaceable pH electrode, automatic temperature compensation, and a floating design—making it the ideal choice for pool monitoring, sanitizer verification, wastewater treatment, and industrial applications.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-in-1 combo meter\u003c\/strong\u003e – Measures pH, ORP (oxidation-reduction potential), and temperature simultaneously\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh precision\u003c\/strong\u003e – 0.01 pH resolution with ±0.05 pH accuracy, ±2 mV ORP accuracy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterproof \u0026amp; floats\u003c\/strong\u003e – IP67 rated, designed to float for easy retrieval if dropped in water\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaceable pH electrode\u003c\/strong\u003e – HI73127 electrode extends tester life indefinitely\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuto calibration\u003c\/strong\u003e – One or two-point pH calibration with dual buffer sets\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature compensation\u003c\/strong\u003e – Automatic ATC for accurate pH readings at any temperature\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHOLD feature\u003c\/strong\u003e – Freezes reading on display for easy recording\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory-calibrated ORP\u003c\/strong\u003e – Fixed platinum ORP sensor, ready to use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete kit\u003c\/strong\u003e – Includes electrodes, buffers, ORP test solution, cleaning solution, and batteries\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Measure Both pH and ORP?\u003c\/h3\u003e\n\u003cp\u003eThe HI98121 allows you to monitor both pH and ORP simultaneously, providing a complete picture of water chemistry. This dual measurement capability is essential for:\u003c\/p\u003e\n\n\u003ch4\u003eSwimming Pool \u0026amp; Spa Monitoring\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003epH:\u003c\/strong\u003e Ensures water balance for swimmer comfort and equipment protection (ideal 7.2-7.8)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eORP:\u003c\/strong\u003e Verifies sanitizer effectiveness and disinfection potential (ideal 650-750 mV for pools)\u003c\/li\u003e\n\u003cli\u003eTogether, pH and ORP provide complete water quality assessment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eFood Sanitization\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003epH:\u003c\/strong\u003e Monitors cleaning solution acidity\/alkalinity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eORP:\u003c\/strong\u003e Confirms sanitizer strength and effectiveness for food safety compliance\u003c\/li\u003e\n\u003cli\u003eCritical for HACCP programs and health department requirements\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eWastewater Treatment\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003epH:\u003c\/strong\u003e Ensures proper treatment process conditions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eORP:\u003c\/strong\u003e Monitors oxidation\/reduction reactions and treatment effectiveness\u003c\/li\u003e\n\u003cli\u003eOptimizes chemical dosing and process control\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eIndustrial Applications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlating operations:\u003c\/strong\u003e pH and ORP control for consistent plating quality\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCooling towers:\u003c\/strong\u003e Corrosion and scale prevention through pH\/ORP monitoring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemical processing:\u003c\/strong\u003e Redox reaction monitoring and process optimization\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eUnderstanding ORP (Oxidation-Reduction Potential)\u003c\/h3\u003e\n\u003cp\u003eSimilar to pH measurement that quantifies how acidic or alkaline solutions are, ORP measurements quantify the overall state of a solution as having the ability to oxidize or reduce chemical species. ORP is measured in millivolts (mV):\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePositive ORP values:\u003c\/strong\u003e Indicate oxidizing conditions (chlorine, ozone, hydrogen peroxide)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNegative ORP values:\u003c\/strong\u003e Indicate reducing conditions (antioxidants, reducing agents)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigher ORP in pools:\u003c\/strong\u003e Indicates stronger sanitizer effectiveness and better disinfection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThe HI98121 uses a platinum ORP sensor—a noble metal that is chemically inert and promotes rapid electron exchange for accurate, stable ORP measurements.\u003c\/p\u003e\n\n\u003ch3\u003eAdvanced Features for Professional Use\u003c\/h3\u003e\n\n\u003ch4\u003eWaterproof \u0026amp; Floating Design\u003c\/h4\u003e\n\u003cp\u003eIP67 waterproof rating protects against water immersion, while the floating design ensures that if you accidentally drop the tester in a pool, tank, or water body, it won't sink—simply retrieve it from the surface and continue testing.\u003c\/p\u003e\n\n\u003ch4\u003eReplaceable HI73127 pH Electrode\u003c\/h4\u003e\n\u003cp\u003eThe included HI73127 pH electrode features:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtractable cloth junction:\u003c\/strong\u003e Can be renewed by pulling out to expose fresh material\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass body:\u003c\/strong\u003e Chemically resistant and quick to reach thermal equilibrium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy replacement:\u003c\/strong\u003e Simple screw-on design when replacement is needed\u003c\/li\u003e\n\u003cli\u003eExtends tester life indefinitely—replace electrode instead of entire meter\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eFixed Platinum ORP Sensor\u003c\/h4\u003e\n\u003cp\u003eThe built-in ORP sensor uses pure platinum for optimal performance:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFactory calibrated for immediate use\u003c\/li\u003e\n\u003cli\u003eHigh exchange current density for rapid response\u003c\/li\u003e\n\u003cli\u003eChemically inert—won't oxidize or reduce\u003c\/li\u003e\n\u003cli\u003eDurable construction for long-term reliability\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eAutomatic Temperature Compensation (ATC)\u003c\/h4\u003e\n\u003cp\u003eBuilt-in temperature sensor provides automatic temperature compensation for pH readings, ensuring accuracy across the temperature range of -5.0 to 60.0°C (23.0 to 140.0°F). Temperature is displayed simultaneously with pH and ORP.\u003c\/p\u003e\n\n\u003ch4\u003eFlexible pH Calibration\u003c\/h4\u003e\n\u003cp\u003eAutomatic one or two-point calibration with two selectable buffer sets:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuffer Set 1:\u003c\/strong\u003e pH 4.01, 7.01, 10.01\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuffer Set 2:\u003c\/strong\u003e pH 4.01, 6.86, 9.18\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eChoose the buffer set that best matches your application requirements.\u003c\/p\u003e\n\n\u003ch4\u003eHOLD Feature\u003c\/h4\u003e\n\u003cp\u003eThe HOLD button freezes the reading on the display, making it easy to record measurements in challenging environments or when you need to document results.\u003c\/p\u003e\n\n\u003ch3\u003eLightweight \u0026amp; Ergonomic Design\u003c\/h3\u003e\n\u003cp\u003eAt just 100g (3.5 oz), the HI98121 is lightweight and ergonomically designed for comfortable handheld use. The compact size (163 × 40 × 26 mm) makes it easy to carry and use anywhere.\u003c\/p\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSwimming pools and spas (pH and chlorine monitoring)\u003c\/li\u003e\n\u003cli\u003eAquariums and aquaculture (water quality management)\u003c\/li\u003e\n\u003cli\u003eFood and beverage sanitization (HACCP compliance)\u003c\/li\u003e\n\u003cli\u003eWastewater treatment (process monitoring and control)\u003c\/li\u003e\n\u003cli\u003eCooling tower water treatment (corrosion prevention)\u003c\/li\u003e\n\u003cli\u003ePlating operations (bath monitoring)\u003c\/li\u003e\n\u003cli\u003eIndustrial process control (redox reactions)\u003c\/li\u003e\n\u003cli\u003eEnvironmental monitoring (water quality assessment)\u003c\/li\u003e\n\u003cli\u003eLaboratory and research (general pH\/ORP testing)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eComplete Kit - Ready to Test\u003c\/h3\u003e\n\u003cp\u003eThe HI98121 arrives with everything needed for immediate pH and ORP testing:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHI98121 pH\/ORP\/Temperature tester with floating design\u003c\/li\u003e\n\u003cli\u003eHI73127 replaceable pH electrode\u003c\/li\u003e\n\u003cli\u003eHI73128 electrode removal tool\u003c\/li\u003e\n\u003cli\u003epH 4.01 buffer solution sachet (20 mL)\u003c\/li\u003e\n\u003cli\u003epH 7.01 buffer solution sachet (20 mL)\u003c\/li\u003e\n\u003cli\u003eHI70022 470 mV ORP test solution sachets (2 × 20 mL)\u003c\/li\u003e\n\u003cli\u003eHI70300N storage solution sachet (20 mL)\u003c\/li\u003e\n\u003cli\u003eHI700601 electrode cleaning solution sachet (20 mL)\u003c\/li\u003e\n\u003cli\u003e1.5V AAA batteries (4 pcs.)\u003c\/li\u003e\n\u003cli\u003eInstrument quality certificate\u003c\/li\u003e\n\u003cli\u003eInstruction manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI98121\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003epH Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-2.00 to 16.00 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003epH Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.01 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003epH Accuracy (@25°C\/77°F)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±0.05 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003epH Calibration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAutomatic, one or two-point with two buffer sets (pH 4.01\/7.01\/10.01 or 4.01\/6.86\/9.18)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003epH Temperature Compensation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAutomatic (ATC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eORP Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±1000 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eORP Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eORP Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±2 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eORP Calibration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFactory calibrated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-5.0 to 60.0°C \/ 23.0 to 140.0°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1°C \/ 0.1°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±0.5°C \/ ±1°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003epH Electrode\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI73127 replaceable pH electrode (included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eORP Electrode\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFixed platinum ORP sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWaterproof Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIP67 (waterproof and floats)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAutomatic Shut-Off\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAuto-off after 8 minutes of non-use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery Type \/ Life\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.5V AAA (4) \/ Approximately 250 hours continuous use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnvironment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-5 to 50°C (23 to 122°F); RH max 100%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e163 × 40 × 26 mm (6.4 × 1.6 × 1.0\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100 g (3.5 oz.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eTypical ORP Values by Application\u003c\/h3\u003e\n\n\u003ch4\u003eSwimming Pools\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdeal range:\u003c\/strong\u003e 650-750 mV (indicates effective chlorine sanitization)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum:\u003c\/strong\u003e 650 mV (health department requirement in many jurisdictions)\u003c\/li\u003e\n\u003cli\u003eHigher ORP = better disinfection and pathogen control\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eDrinking Water\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical range:\u003c\/strong\u003e 200-400 mV (chlorinated municipal water)\u003c\/li\u003e\n\u003cli\u003ePositive ORP indicates oxidizing disinfectants present\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eWastewater Treatment\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAerobic treatment:\u003c\/strong\u003e +100 to +400 mV (oxidizing conditions)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnaerobic treatment:\u003c\/strong\u003e -100 to -300 mV (reducing conditions)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eReplacement Parts \u0026amp; Accessories\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHI73127:\u003c\/strong\u003e Replacement pH electrode\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHI70004P:\u003c\/strong\u003e pH 4.01 buffer solution\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHI70007P:\u003c\/strong\u003e pH 7.01 buffer solution\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHI70010P:\u003c\/strong\u003e pH 10.01 buffer solution\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHI70022:\u003c\/strong\u003e 470 mV ORP test solution\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHI70300:\u003c\/strong\u003e Storage solution for pH \u0026amp; ORP electrodes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHI700601:\u003c\/strong\u003e Electrode cleaning solution\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Choose the HI98121?\u003c\/h3\u003e\n\u003cp\u003eThe HI98121 is the only waterproof, floating combo meter in its class that measures pH, ORP, and temperature simultaneously. The replaceable pH electrode design protects your investment, while the factory-calibrated platinum ORP sensor ensures accurate oxidation-reduction measurements right out of the box. Whether you're a pool professional, food safety manager, wastewater operator, or industrial technician, the HI98121 delivers the accuracy, reliability, and convenience you need.\u003c\/p\u003e\n\n\u003ch3\u003eEconomical Professional Solution\u003c\/h3\u003e\n\u003cp\u003eGet professional-grade accuracy for both pH and ORP in a single, affordable meter. The HI98121 eliminates the need to purchase separate pH and ORP meters, saving you money while providing comprehensive water chemistry monitoring.\u003c\/p\u003e\n\n\u003ch3\u003eWarranty \u0026amp; Support\u003c\/h3\u003e\n\u003cp\u003eThe HI98121 pH\/ORP\/Temperature Tester is backed by Hanna's quality guarantee and customer support. For technical assistance, calibration questions, or replacement parts, our expert team is ready to help.\u003c\/p\u003e","brand":"HANNA Instruments","offers":[{"title":"Default Title","offer_id":41334062350423,"sku":"HI98121","price":249.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/files\/combo-ph-orp-meter-Best-Seller-hi98121__24825.jpg?v=1730051251"},{"product_id":"hanna-hi1286-economy-ph-electrode","title":"HI1286 Economy pH Electrode | PEI Body | BNC Connector | Hanna Instruments","description":"\u003ch2\u003eAffordable, Durable pH Electrode for General Purpose Testing\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eHanna Instruments HI1286 Economy pH Electrode\u003c\/strong\u003e delivers reliable pH measurement at an affordable price point. Featuring a durable polyetherimide (PEI) plastic body and spherical glass tip, the HI1286 is ideal for general purpose pH testing in laboratories, field applications, aquariums, hydroponics, and water quality monitoring.\u003c\/p\u003e\n\n\u003ch3\u003eKey Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable PEI Body:\u003c\/strong\u003e Shatter-resistant plastic construction protects against accidental breakage and drops\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal BNC Connector:\u003c\/strong\u003e Compatible with any pH meter featuring a female BNC probe input\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Temperature Range:\u003c\/strong\u003e Suitable for samples from 0 to 80°C (32 to 176°F)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePTFE Junction:\u003c\/strong\u003e Hydrophobic junction resists clogging and chemical attack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDouble Junction Design:\u003c\/strong\u003e Prevents silver contamination in sensitive samples\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpherical Glass Tip:\u003c\/strong\u003e Large surface area ensures fast, accurate response in aqueous solutions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIdeal Applications\u003c\/h3\u003e\n\u003cp\u003ePerfect for general purpose pH testing in laboratories, field measurements, aquariums, hydroponics systems, water quality monitoring, wastewater treatment, food and beverage testing, and educational settings where durability and affordability are essential.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e HI1286\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Material:\u003c\/strong\u003e Polyetherimide (PEI) plastic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass Tip:\u003c\/strong\u003e Spherical shape for aqueous samples\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJunction Type:\u003c\/strong\u003e PTFE (polytetrafluoroethylene)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReference:\u003c\/strong\u003e Double junction Ag\/AgCl\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e 0 to 80°C (32 to 176°F)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector:\u003c\/strong\u003e Universal BNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e General purpose aqueous solutions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAdvanced Design Features\u003c\/h3\u003e\n\n\u003ch4\u003ePEI Plastic Body\u003c\/h4\u003e\n\u003cp\u003eThe HI1286 features a polyetherimide (PEI) resin body that offers exceptional durability for field and laboratory use. Unlike fragile glass-bodied electrodes, the PEI construction withstands accidental bumping and dropping. The protective shielding around the spherical glass tip minimizes breakage while maintaining measurement accuracy. PEI is chemically resistant to many aggressive chemicals, making this electrode suitable for a wide range of applications.\u003c\/p\u003e\n\n\u003ch4\u003ePTFE Junction\u003c\/h4\u003e\n\u003cp\u003eThe porous polytetrafluoroethylene (PTFE) junction is hydrophobic and chemically resistant, making it ideal for industrial applications and samples containing oils or organic solvents. The PTFE material resists clogging better than ceramic junctions, ensuring longer electrode life and more consistent measurements.\u003c\/p\u003e\n\n\u003ch4\u003eDouble Junction Reference\u003c\/h4\u003e\n\u003cp\u003eThe double junction design features an internal compartment surrounding the Ag\/AgCl reference wire. Silver ions remain in the internal electrolyte compartment, while the outer electrolyte is silver-free. This prevents silver contamination in your samples and eliminates silver precipitate formation on the junction, which is especially important when measuring samples containing proteins, sulfides, or other compounds that react with silver.\u003c\/p\u003e\n\n\u003ch4\u003eUniversal BNC Connector\u003c\/h4\u003e\n\u003cp\u003eThe HI1286 uses a standard BNC connector, making it compatible with virtually any pH meter featuring a female BNC probe input. This universal compatibility makes the HI1286 an excellent replacement electrode for meters from multiple manufacturers, unlike proprietary connectors (DIN, screw type, T-type, 3.5mm) that limit compatibility.\u003c\/p\u003e\n\n\u003ch3\u003eProfessional Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eShatter-resistant PEI plastic body for field durability\u003c\/li\u003e\n\u003cli\u003eSpherical glass tip with large surface area for fast response\u003c\/li\u003e\n\u003cli\u003ePTFE junction resists clogging and chemical attack\u003c\/li\u003e\n\u003cli\u003eDouble junction prevents silver contamination\u003c\/li\u003e\n\u003cli\u003eUniversal BNC connector for broad meter compatibility\u003c\/li\u003e\n\u003cli\u003eWide temperature range (0-80°C) for versatile applications\u003c\/li\u003e\n\u003cli\u003eChemically resistant construction for aggressive samples\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Includes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHI1286 pH Electrode with BNC connector\u003c\/li\u003e\n\u003cli\u003eProtective cap\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eMade in Romania by Hanna Instruments - trusted worldwide for precision pH measurement solutions.\u003c\/em\u003e\u003c\/p\u003e","brand":"HANNA Instruments","offers":[{"title":"Default Title","offer_id":41334105210967,"sku":"HI1286","price":84.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/files\/ph-electrode-economy-pei--HI1286__04124.1570465195.1280.1280.jpg?v=1730054600"},{"product_id":"hanna-hi98304-dist-4-ec-tester-waterproof-conductivity-meter","title":"Hanna HI98304 DiST 4 EC Tester - Waterproof High Range Conductivity Meter 0-20 mS\/cm","description":"\u003cp\u003eThe Hanna Instruments HI98304 DiST\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003e4 is a high-range electrolytic conductivity (EC) tester that can measure up to 20.00 mS\/cm making it ideal for a variety of applications including water treatment, boilers and cooling towers, agricultural including hydroponics, and general laboratory use. The DiST\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003e4 is a rugged and reliable pocket-sized tester for use in the lab or field. This modern looking meter is only 0.7\" thick and extremely ergonomic, fitting comfortably in your hand. This tester keeps things simple with a two-button operation; one for ON\/OFF, the other for calibration.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLarge Multi-level LCD\u003c\/li\u003e\n\u003cli\u003eExposed Temperature Probe for Fast Response\u003c\/li\u003e\n\u003cli\u003eSimple Two-Button Operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThe DiST\u003c\/span\u003e\u003csup\u003e®\u003cspan\u003e \u003c\/span\u003e\u003c\/sup\u003e\u003cspan\u003e4 features a large multi-level LCD which displays both conductivity and temperature readings simultaneously. The EC readings are displayed with a 0.01 mS\/cm resolution and with an accuracy of ±2% full scale. The EC range of the HI98304 is from 0.00 to 20.00 mS\/cm. An exposed temperature sensor allows for rapid automatic temperature compensated conductivity measurements. Temperature can be set to display in ℃ or ℉. The LCD screen has stability and calibration tag indicators. The battery percent level is displayed at start up alerting the user to the remaining battery power that is available.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eConductivity readings are performed by an amperometric graphite electrode that resists oxidation, providing better repeatability in measurements. The use of graphite also reduces the polarization effect common with amperometric testers that use two stainless steel pins.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eCalibration is performed by pressing the dedicated calibration button. Once in calibration mode submerge the probe in 12.88 mS\/cm calibration standard. When the standard value is recognized and stability reached, the meter will automatically accept and store the calibration value.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eSetup options include automatic shut-off timing and temperature unit displayed. Automatic shut-off options are to turn the meter off after 8 minutes, 60 minutes, or disabled. To enter the setup mode the user presses a button located in the battery compartment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv data-hs-cos-type=\"module\" data-hs-cos-general-type=\"widget\" class=\"hs_cos_wrapper hs_cos_wrapper_widget hs_cos_wrapper_type_module\" id=\"hs_cos_wrapper_widget_1563215317608\"\u003e\n\u003csection class=\"banner--product-features\"\u003e\n\u003cdiv class=\"grid-container features-container\"\u003e\n\u003cdiv class=\"grid-x grid-padding-x align-center feature-block-list\"\u003e\n\u003cdiv class=\"cell small-12 large-10\"\u003e\n\u003ch2 class=\"section-header text-center\"\u003eOverview\u003c\/h2\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y small-up-1 medium-up-2 large-up-3\"\u003e\n\u003cdiv class=\"feature cell\"\u003e\n\u003cimg alt=\"lcd-hi98304\" src=\"https:\/\/www.hannainst.com\/hubfs\/lcd-hi98304.jpg\" class=\"feature-image float-center\"\u003e\u003cspan class=\"feature-header h4\"\u003eMulti-Level LCD\u003c\/span\u003eThe large LCD displays EC, temperature, calibration tag, battery level and instability indicator.\u003c\/div\u003e\n\u003cdiv class=\"feature cell\"\u003e\n\u003cimg alt=\"sensors-hi98304\" src=\"https:\/\/www.hannainst.com\/hubfs\/sensors-hi98304.jpg\" class=\"feature-image float-center\"\u003e\u003cspan class=\"feature-header h4\"\u003eExposed Temperature Probe\u003c\/span\u003eAn exposed temperature probe allows for an extremely fast and stable EC measurement.\u003c\/div\u003e\n\u003cdiv class=\"feature cell\"\u003e\n\u003cimg alt=\"two-buttons-hi98304\" src=\"https:\/\/www.hannainst.com\/hubfs\/two-buttons-hi98304.jpg\" class=\"feature-image float-center\"\u003e\u003cspan class=\"feature-header h4\"\u003eTwo-Button Operation\u003c\/span\u003eOnly two buttons for meter operation. One for on\/off and one for calibration.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003cdiv data-hs-cos-type=\"module\" data-hs-cos-general-type=\"widget\" class=\"hs_cos_wrapper hs_cos_wrapper_widget hs_cos_wrapper_type_module\" id=\"hs_cos_wrapper_widget_1563215366559\"\u003e\n\u003csection class=\"banner--product-col2-details grid-container\"\u003e\n\u003cdiv class=\"col2-detail-group grid-x grid-padding-x grid-padding-y align-right\"\u003e\n\u003cdiv class=\"cell small-12\"\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch3\u003eFeatures and Benefits\u003c\/h3\u003e\n\u003ch4\u003eSlim, Ergonomic Design\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eWith rounded edges and a case that is only 17 mm (0.7”) thick, the HI98304 is thin and fits comfortably in the hand or pocket.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eLarge Multi-level LCD\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eThe LCD is 29 mm (1.125”) x 20 mm (0.81”) allowing the user to easily read both EC and temperature simultaneously.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eTwo-button Operation\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eOne for ON\/OFF, the other for calibration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eExposed Temperature Sensor\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eExposed temperature sensor allows for quick Automatic Temperature Compensated measurements. Temperature can be displayed in either\u003cspan\u003e \u003c\/span\u003e\u003csup\u003eo\u003c\/sup\u003eC or\u003cspan\u003e \u003c\/span\u003e\u003csup\u003eo\u003c\/sup\u003eF.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eGraphite Sensor\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eReduces polarization effects and does not oxidize resulting in a reliable and accurate reading.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cell small-12 large-auto\" data-details=\"\"\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y\" data-detail-item=\"\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003eAutomatic Calibration\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eAutomatic calibration at 12.88 mS\/cm with a single push of a button.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStability Indicator\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eA clock tag stability indicator will disappear to alert the user when the reading is stable.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eAutomatic Shut-off\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eUser-selectable time until meter shuts off to conserve battery life. Options are 8 min, 60 min or disabled.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eLow Battery Indicator\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eLow battery indicator that is displayed when less than 10% battery life is remaining.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eBattery % Level at Startup\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eAt start-up, all the LCD segments are displayed for 1 second, then the percent indication of the remaining battery life is displayed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":41348197318743,"sku":"HI98304","price":79.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/files\/dist4-cover-hi98304__09792.jpg?v=1730830214"},{"product_id":"hanna-hi98128-phep5-waterproof-ph-temperature-tester","title":"Hanna HI98128 pHep5 pH Tester | Waterproof 0.01 Resolution Pocket Meter","description":"\u003cp\u003e\u003cstrong\u003eProfessional-grade pH and temperature testing in a compact, waterproof pocket design.\u003c\/strong\u003e The Hanna HI98128 pHep\u003csup\u003e®\u003c\/sup\u003e5 delivers laboratory-accurate measurements with 0.01 pH resolution and ±0.05 pH accuracy, featuring automatic calibration, temperature compensation, and a replaceable electrode system that extends the life of your tester for years.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh precision 0.01 pH resolution\u003c\/strong\u003e – Professional accuracy of ±0.05 pH for reliable results\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterproof \u0026amp; floats\u003c\/strong\u003e – IP67 rated, designed to float if dropped in water\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaceable electrode\u003c\/strong\u003e – HI73127 cartridge design with extractable cloth junction extends tester life\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuto calibration\u003c\/strong\u003e – One, two, or three-point automatic calibration with dual buffer sets\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature compensation\u003c\/strong\u003e – Automatic ATC displays pH and temperature (°C or °F) simultaneously\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended pH range\u003c\/strong\u003e – Measures from -2.00 to 16.00 pH for versatile applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong battery life\u003c\/strong\u003e – Up to 300 hours continuous use with 4 AAA batteries\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePortable \u0026amp; durable\u003c\/strong\u003e – Pocket-sized design perfect for field testing and on-the-go measurements\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Choose the pHep\u003csup\u003e®\u003c\/sup\u003e5?\u003c\/h3\u003e\n\u003cp\u003eThe HI98128 pHep\u003csup\u003e®\u003c\/sup\u003e5 combines advanced features typically found in expensive portable instrumentation with the convenience and affordability of a pocket tester. The innovative replaceable electrode design features a stainless steel round connector with no pins to align or break, making electrode replacement quick and foolproof. The extractable cloth junction can be renewed by simply pulling out ⅛\" of material, clearing any clogging and restoring response time without replacing the entire electrode.\u003c\/p\u003e\n\n\u003ch3\u003eAdvanced Features for Confident Testing\u003c\/h3\u003e\n\n\u003ch4\u003eWaterproof Design\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eIP67 waterproof rating protects against water immersion\u003c\/li\u003e\n\u003cli\u003eDesigned to float if accidentally dropped in a tank or water body\u003c\/li\u003e\n\u003cli\u003eIdeal for wet environments, field testing, and marine applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eExpanded pH Range\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eMeasures from -2.00 to 16.00 pH – handles extreme acidic and alkaline solutions\u003c\/li\u003e\n\u003cli\u003ePerfect for diverse applications from aquariums to industrial testing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eAutomatic Temperature Compensation (ATC)\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eAll pH readings automatically compensated for temperature variations\u003c\/li\u003e\n\u003cli\u003eSimultaneous display of pH and temperature in °C or °F\u003c\/li\u003e\n\u003cli\u003eTemperature range: -5.0 to 60.0°C (23.0 to 140.0°F)\u003c\/li\u003e\n\u003cli\u003eTemperature accuracy: ±0.5°C \/ ±1°F\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eStability Indicator\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eOn-screen clock icon disappears when reading achieves stability\u003c\/li\u003e\n\u003cli\u003eEnsures accurate, reliable measurements every time\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eHOLD Button\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eFreezes reading on display for easy recording and documentation\u003c\/li\u003e\n\u003cli\u003ePerfect for logging measurements in challenging environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eBEPS (Battery Error Prevention System)\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eAutomatically shuts off if battery power is insufficient for accurate measurement\u003c\/li\u003e\n\u003cli\u003ePrevents false readings due to low battery\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eAuto-Off Function\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eAutomatically powers down after 8 minutes of non-use\u003c\/li\u003e\n\u003cli\u003eMaximizes battery life and prevents accidental drain\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFlexible Calibration Options\u003c\/h3\u003e\n\u003cp\u003eThe pHep\u003csup\u003e®\u003c\/sup\u003e5 offers automatic one, two, or three-point calibration with two selectable buffer sets for maximum flexibility:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuffer Set 1:\u003c\/strong\u003e pH 4.01, 7.01, 10.01\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuffer Set 2:\u003c\/strong\u003e pH 4.01, 6.86, 9.18\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eChoose the buffer set that best matches your testing requirements and application.\u003c\/p\u003e\n\n\u003ch3\u003eReplaceable Electrode System\u003c\/h3\u003e\n\u003cp\u003eThe HI73127 pH electrode features an innovative cartridge design with a stainless steel round connector – no fragile pins to align or break. The extractable cloth junction allows you to renew the junction by simply pulling out ⅛\" of material, clearing clogs and restoring fast response time. This extends electrode life significantly, reducing long-term costs.\u003c\/p\u003e\n\n\u003ch3\u003eComplete Kit - Ready to Test\u003c\/h3\u003e\n\u003cp\u003eYour HI98128 pHep\u003csup\u003e®\u003c\/sup\u003e5 arrives with everything needed for immediate testing:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHI73127 replaceable pH electrode\u003c\/li\u003e\n\u003cli\u003eHI73128 electrode removal tool\u003c\/li\u003e\n\u003cli\u003epH 4.01 buffer solution sachets (2 × 20 mL)\u003c\/li\u003e\n\u003cli\u003epH 7.01 buffer solution sachets (2 × 20 mL)\u003c\/li\u003e\n\u003cli\u003eHI700601 electrode cleaning solution sachet (20 mL)\u003c\/li\u003e\n\u003cli\u003eHI70300N storage solution sachet (20 mL)\u003c\/li\u003e\n\u003cli\u003e1.5V AAA batteries (4 pcs.)\u003c\/li\u003e\n\u003cli\u003eInstrument quality certificate\u003c\/li\u003e\n\u003cli\u003eInstruction manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI98128\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003epH Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-2.00 to 16.00 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003epH Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.01 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003epH Accuracy (@25°C\/77°F)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±0.05 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003epH Calibration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAutomatic, at one, two, or three points with two sets of standard buffers (pH 4.01\/7.01\/10.01 or pH 4.01\/6.86\/9.18)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003epH Temperature Compensation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAutomatic (ATC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-5.0 to 60.0°C \/ 23.0 to 140.0°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1°C \/ 0.1°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±0.5°C \/ ±1°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003epH Electrode\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI73127 replaceable pH electrode with extractable cloth junction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAutomatic Shut-Off\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAuto-off after 8 minutes of non-use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery Type \/ Life\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.5V AAA (4) \/ Approximately 300 hours of continuous use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnvironment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-5 to 50°C (23 to 122°F); RH max 100%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWaterproof Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIP67 (waterproof and floats)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e163 × 40 × 26 mm (6.4 × 1.6 × 1.0\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100 g (3.5 oz.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAquariums and aquaculture\u003c\/li\u003e\n\u003cli\u003eHydroponics and agriculture\u003c\/li\u003e\n\u003cli\u003eWater quality testing\u003c\/li\u003e\n\u003cli\u003eSwimming pools and spas\u003c\/li\u003e\n\u003cli\u003eLaboratory and educational use\u003c\/li\u003e\n\u003cli\u003eFood and beverage production\u003c\/li\u003e\n\u003cli\u003eEnvironmental monitoring\u003c\/li\u003e\n\u003cli\u003eMarine and reef keeping\u003c\/li\u003e\n\u003cli\u003eWastewater treatment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Hanna Instruments?\u003c\/h3\u003e\n\u003cp\u003eHanna Instruments is a world leader in analytical instrumentation, trusted by professionals in over 140 countries. The pHep\u003csup\u003e®\u003c\/sup\u003e5 represents decades of innovation in portable pH testing, combining professional accuracy with user-friendly operation and exceptional value.\u003c\/p\u003e","brand":"HANNA Instruments","offers":[{"title":"Default Title","offer_id":41357287555159,"sku":"HI98128","price":154.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/files\/water-ph-tester-best-seller-hi98128__65277.jpg?v=1731267348"},{"product_id":"hanna-dist5-ec-tds-temperature-tester-hi98311","title":"Hanna DiST5 EC TDS Temperature Tester - Waterproof 3-in-1 Pen HI98311","description":"\u003ch1\u003e\u003cstrong\u003e3-IN-1 WATERPROOF EC, TDS \u0026amp; TEMPERATURE TESTING\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cp\u003eThe Hanna DiST\u003csup\u003e®\u003c\/sup\u003e 5 (HI98311) is an advanced, waterproof conductivity and TDS tester that delivers quick, accurate measurements in a single pocket-sized device. Measure conductivity (0–3999 µS\/cm), TDS (0–2000 ppm), and temperature without switching between multiple meters—perfect for on-the-go testing in hydroponics, aquariums, pools, ponds, and water quality applications.\u003c\/p\u003e\n\n\u003ch2\u003eWHY CHOOSE THE DiST\u003csup\u003e®\u003c\/sup\u003e 5?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact waterproof design\u003c\/strong\u003e – Floats and fits in your pocket for ultimate portability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaceable graphite electrode\u003c\/strong\u003e – Extends tester life for years of reliable use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-in-1 convenience\u003c\/strong\u003e – EC, TDS, and temperature in one device\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdeal for multiple applications\u003c\/strong\u003e – Hydroponics, aquariums, pools, ponds, and general water testing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTHE STANDARD IN EC \u0026amp; TDS MEASUREMENT\u003c\/h2\u003e\n\u003cp\u003eWhen Hanna first introduced the original DiST\u003csup\u003e®\u003c\/sup\u003e (Dissolved Solids Tester), conductivity and total dissolved solids measurements became easy and affordable for everyone. The DiST\u003csup\u003e®\u003c\/sup\u003e's combination of simplicity and value made it the industry standard in EC and TDS measurement. Hanna continues this legacy with the DiST\u003csup\u003e®\u003c\/sup\u003e 5—packed with advanced features while maintaining the ease of use that made the original famous.\u003c\/p\u003e\n\n\u003ch2\u003eADVANCED FEATURES FOR ACCURATE TESTING\u003c\/h2\u003e\n\n\u003ch3\u003eReplaceable Graphite Electrode\u003c\/h3\u003e\n\u003cp\u003eThe HI73311 graphite conductivity electrode delivers superior accuracy by resisting contamination from salt deposits in your samples. Unlike fixed electrodes, this replaceable design extends the life of your tester for years of dependable measurements.\u003c\/p\u003e\n\n\u003ch3\u003eAdjustable TDS Conversion Ratio\u003c\/h3\u003e\n\u003cp\u003eCustomize the EC-to-TDS conversion factor (0.45 to 1.00) to match your specific application, ensuring accurate TDS readings for your unique water chemistry.\u003c\/p\u003e\n\n\u003ch3\u003eAutomatic Temperature Compensation (ATC)\u003c\/h3\u003e\n\u003cp\u003eBuilt-in ATC with adjustable β (0.0 to 2.4%\/°C) automatically corrects EC and TDS readings based on temperature, eliminating manual calculations and ensuring accuracy across varying conditions.\u003c\/p\u003e\n\n\u003ch3\u003eDual Temperature Display\u003c\/h3\u003e\n\u003cp\u003eSwitch between °C and °F for convenient temperature measurement in your preferred unit.\u003c\/p\u003e\n\n\u003ch3\u003eSmart Battery Management (BEPS)\u003c\/h3\u003e\n\u003cp\u003eThe Battery Error Prevention System alerts you when low battery power could affect reading accuracy, preventing unreliable measurements. Get approximately 100 hours of continuous use from four 1.5V batteries (included).\u003c\/p\u003e\n\n\u003ch3\u003eAutomatic Calibration\u003c\/h3\u003e\n\u003cp\u003eOne-point automatic calibration at 1413 µS\/cm or 1382 mg\/L (ppm) ensures your tester stays accurate with minimal effort.\u003c\/p\u003e\n\n\u003ch3\u003eWaterproof \u0026amp; Floating Design\u003c\/h3\u003e\n\u003cp\u003eThe IP67-rated waterproof casing protects against water intrusion and the tester floats—so you'll never lose it in a pool, pond, or tank. Built to withstand real-world testing environments.\u003c\/p\u003e\n\n\u003ch2\u003eCONVENIENT OPERATION FEATURES\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHOLD button\u003c\/strong\u003e – Freeze readings on the display for easy recording\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStability indicator\u003c\/strong\u003e – Know when your reading has stabilized\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery level indicator\u003c\/strong\u003e – Monitor power status at a glance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic shut-off\u003c\/strong\u003e – Powers down after 8 minutes of non-use to conserve battery life\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eUNMATCHED VERSATILITY\u003c\/h2\u003e\n\u003cp\u003eAll these professional features are packed into a lightweight, floating, waterproof casing that fits comfortably in your hand or pocket. The DiST\u003csup\u003e®\u003c\/sup\u003e 5 is unmatched for EC, TDS, and temperature measurements in:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHydroponic nutrient solutions\u003c\/li\u003e\n\u003cli\u003eAquarium water quality monitoring\u003c\/li\u003e\n\u003cli\u003eSwimming pool and spa maintenance\u003c\/li\u003e\n\u003cli\u003ePond water testing\u003c\/li\u003e\n\u003cli\u003eDrinking water quality checks\u003c\/li\u003e\n\u003cli\u003eAgricultural irrigation water\u003c\/li\u003e\n\u003cli\u003eLaboratory and field testing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTECHNICAL SPECIFICATIONS\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI98311 (DiST\u003csup\u003e®\u003c\/sup\u003e 5)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEC Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 to 3999 µS\/cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEC Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 µS\/cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEC Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±2% Full Scale\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEC Calibration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAutomatic, one point at 1413 µS\/cm or 1382 mg\/L (ppm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTDS Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 to 2000 mg\/L (ppm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTDS Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 mg\/L (ppm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTDS Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±2% Full Scale\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEC\/TDS Temperature Compensation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAutomatic, with β adjustable from 0.0 to 2.4%\/°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEC to TDS Conversion Factor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAdjustable from 0.45 to 1.00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.0 to 60.0°C \/ 32.0 to 140.0°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1°C \/ 0.1°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±0.5°C \/ ±1°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProbe\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI73311 replaceable EC\/TDS graphite electrode (included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAutomatic Shut-Off\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAfter 8 minutes of non-use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Supply\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFour 1.5V batteries (included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery Life\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApproximately 100 hours of continuous use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Environment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 to 50°C (32 to 122°F); RH max 100%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProtection Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWaterproof and floats\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e163 × 40 × 26 mm (6.4\" × 1.6\" × 1.0\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100 g (3.5 oz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUPC\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e793573622341\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWHAT'S INCLUDED\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHI98311 DiST\u003csup\u003e®\u003c\/sup\u003e 5 EC\/TDS\/Temperature Tester\u003c\/li\u003e\n\u003cli\u003eHI73311 replaceable graphite electrode\u003c\/li\u003e\n\u003cli\u003eFour 1.5V batteries\u003c\/li\u003e\n\u003cli\u003eInstruction manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eThe DiST\u003csup\u003e®\u003c\/sup\u003e 5 continues Hanna's tradition of making professional-grade water testing accessible, affordable, and reliable for everyone from hobbyists to professionals.\u003c\/em\u003e\u003c\/p\u003e","brand":"HANNA Instruments","offers":[{"title":"Default Title","offer_id":41420468944983,"sku":"HI98311","price":154.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/files\/dist-5-tds-tester-hi98311__65995.jpg?v=1733456072"},{"product_id":"digital-refractometer-for-seawater-analysis-hi96822","title":"HI96822 Digital Seawater Refractometer | Salinity \u0026 Specific Gravity | Hanna","description":"\u003cp\u003eThe HI96822 is a rugged, portable digital refractometer designed for the measurement of salinity of natural or artificial seawater. The HI96822 displays results in three popular measurement units: Practical Salinity Units (PSU), salinity in parts per thousands (ppt) and specific gravity (S.G. (20\/20)). The instrument's high accuracy and simple operation gives reliable results each and every time. All readings are automatically compensated for temperature variations and displayed within a 1.5 second response time. The sealed flint glass prism and stainless steel well are easy to clean. Just wipe with a soft cloth in preparation for the next sample.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSample size as small as 2 metric drops (100 μl)\u003c\/li\u003e\n\u003cli\u003eSealed stainless steel well with high-grade optical prism made of flint glass\u003c\/li\u003e\n\u003cli\u003eFast 1.5 second response time for temperature compensated readings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y\" data-detail-item=\"\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003cp\u003eThe HI96822 Digital Refractometer eliminates the uncertainty associated with mechanical refractometers by measuring the refractive index to determine the salinity of natural and artificial seawater including brackish, ocean water or saltwater aquarium. The instrument converts the refractive index of a sample to PSU, ppt and specific gravity. These conversions are based on respected scientific publications using the physical properties of seawater (not sodium chloride). The HI96822 is an easy to use tool for measuring salinity in natural and artificial seawater whether in the field, lab or at home.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for seawater salinity analysis (not NaCl)\u003c\/li\u003e\n\u003cli\u003eAutomatic Temperature Compensation\u003c\/li\u003e\n\u003cli\u003eHigh accuracy measurements displayed as PSU, ppt and specific gravity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y\" data-detail-item=\"\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003eMaking a Standard Solution\u003c\/h4\u003e\n\u003cp\u003eSodium Chloride solutions can be used to check the accuracy of the meter. The table below lists two Sodium Chloride solutions and their expected ppt Seawater value.\u003cbr\u003e\u003cbr\u003eTo make a Standard NaCl Solution (g\/100 g), follow the procedure below\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePlace container (such as a glass vial or dropper bottle that has a cover) on an analytical balance.\u003c\/li\u003e\n\u003cli\u003eTare the balance.\u003c\/li\u003e\n\u003cli\u003eTo make an X NaCl solution weigh out X grams of high purity dried Sodium Chloride (CAS #: 7647-14-5: MW 58.44) directly into the container.\u003c\/li\u003e\n\u003cli\u003eAdd distilled or deionized water to the beaker so the total weight of the solution is 100g.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eExample Standard NaCl Solution \u003c\/p\u003e\n\u003ctable border=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNaCl (g)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eWater (g)\u003cbr\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTotal\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eExpected Seawater value (ppt)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e3.5% NaCl\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3.50\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e96.50\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e100.000\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e34\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e10% NaCl\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e10.00\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e90.00\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e100.000\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e96\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eRefractive Index\u003c\/h4\u003e\n\u003cp\u003eThe HI96822 takes measurements based on a sample’s refractive index. Refractive index is a measurement of how light behaves as it passes through the sample. Depending on the sample’s composition, the light will refract and reflect differently. By measuring this activity with a linear image sensor, the sample’s refractive index can be assessed and used to determine its physical properties such as concentration and density. In addition to the linear image sensor, the HI96822 uses an LED light, prism and lens to make measurement possible.\u003c\/p\u003e\n\u003cp\u003eVariations in temperature will affect the accuracy of refractometry readings, so the use of temperature compensation is highly recommended for reliable results. The HI96822 contains a built-in temperature sensor and is programmed specialized algorithms then apply temperature compensation to the measurement and convert the refractive index to PSU (Practical Salinity Units), ppt (part per thousand) or S.G. (Specific Gravity) (20\/20). PSU is defined as the conductivity ratio of seawater to a standard KCl solution. It is based upon the work of the UNESCO, ICES, SCOR, and IAPSO. This information is published in The Joint Panel of Oceanographic Tables and Standards. An older salinity scale is ppt (10-3), where salinity is defined by “the salt content is the weight of the inorganic salts contained in 1 kg of seawater if all bromide and iodide are replaced by an equivalent amount of oxides” (Knudsen, 1901). Specific Gravity (20\/20) is based upon the published relationship between density at 20 °C and the mass of dissolved salts in the seawater sample (CRC Handbook of Chemistry and Physics, 87th Edition).\u003c\/p\u003e\n\u003cp\u003e\u003cimg sizes=\"(max-width: 912px) 100vw, 912px\" srcset=\"https:\/\/www.hannainst.com\/hs-fs\/hubfs\/Refractive_Index_Diagrams.jpg?width=456\u0026amp;name=Refractive_Index_Diagrams.jpg 456w, https:\/\/www.hannainst.com\/hs-fs\/hubfs\/Refractive_Index_Diagrams.jpg?width=912\u0026amp;name=Refractive_Index_Diagrams.jpg 912w, https:\/\/www.hannainst.com\/hs-fs\/hubfs\/Refractive_Index_Diagrams.jpg?width=1368\u0026amp;name=Refractive_Index_Diagrams.jpg 1368w, https:\/\/www.hannainst.com\/hs-fs\/hubfs\/Refractive_Index_Diagrams.jpg?width=1824\u0026amp;name=Refractive_Index_Diagrams.jpg 1824w, https:\/\/www.hannainst.com\/hs-fs\/hubfs\/Refractive_Index_Diagrams.jpg?width=2280\u0026amp;name=Refractive_Index_Diagrams.jpg 2280w, https:\/\/www.hannainst.com\/hs-fs\/hubfs\/Refractive_Index_Diagrams.jpg?width=2736\u0026amp;name=Refractive_Index_Diagrams.jpg 2736w\" width=\"912\" alt=\"Refractive_Index_Diagrams\" src=\"https:\/\/www.hannainst.com\/hs-fs\/hubfs\/Refractive_Index_Diagrams.jpg?width=912\u0026amp;name=Refractive_Index_Diagrams.jpg\"\u003e\u003c\/p\u003e\n\u003ch2 class=\"section-header border-after--green text-center\"\u003eFeatures-at-a-glance\u003c\/h2\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"feature cell\"\u003e\n\u003cimg alt=\"\" src=\"https:\/\/www.hannainst.com\/hi96822-digital-refractometer-for-seawater-analysis.html\" class=\"feature-image float-center\"\u003e\u003cspan class=\"feature-header border-after--green-fade h4\"\u003eOne-point calibration\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003eCalibrate with distilled or deionized water\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature cell\"\u003e\n\u003cimg alt=\"\" src=\"https:\/\/www.hannainst.com\/hi96822-digital-refractometer-for-seawater-analysis.html\" class=\"feature-image float-center\"\u003e\u003cspan class=\"feature-header border-after--green-fade h4\"\u003eSmall sample size\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003eSample size can be as small as 2 metric drops (100 μl)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature cell\"\u003e\n\u003cimg alt=\"\" src=\"https:\/\/www.hannainst.com\/hi96822-digital-refractometer-for-seawater-analysis.html\" class=\"feature-image float-center\"\u003e\u003cspan class=\"feature-header border-after--green-fade h4\"\u003eQuick, accurate results\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003eReadings are displayed in approximately 1.5 seconds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature cell\"\u003e\n\u003cimg alt=\"\" src=\"https:\/\/www.hannainst.com\/hi96822-digital-refractometer-for-seawater-analysis.html\" class=\"feature-image float-center\"\u003e\u003cspan class=\"feature-header border-after--green-fade h4\"\u003eDual-level LCD\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003eThe dual-level LCD displays measurement and temperature readings simultaneously\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature cell\"\u003e\n\u003cimg alt=\"\" src=\"https:\/\/www.hannainst.com\/hi96822-digital-refractometer-for-seawater-analysis.html\" class=\"feature-image float-center\"\u003e\u003cspan class=\"feature-header border-after--green-fade h4\"\u003eBattery indicators\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003eBattery percent level remaining at startup and low battery indicator\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature cell\"\u003e\n\u003cimg alt=\"\" src=\"https:\/\/www.hannainst.com\/hi96822-digital-refractometer-for-seawater-analysis.html\" class=\"feature-image float-center\"\u003e\u003cspan class=\"feature-header border-after--green-fade h4\"\u003eAutomatic shut-off\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003eTo conserve battery life the meter shuts off automatically after three minutes of non-use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature cell\"\u003e\n\u003cimg alt=\"\" src=\"https:\/\/www.hannainst.com\/hi96822-digital-refractometer-for-seawater-analysis.html\" class=\"feature-image float-center\"\u003e\u003cspan class=\"feature-header border-after--green-fade h4\"\u003eIP65 water-resistant protection\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003eWater resistant ABS plastic casing designed to perform under laboratory and field conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature cell\"\u003e\n\u003cimg alt=\"\" src=\"https:\/\/www.hannainst.com\/hi96822-digital-refractometer-for-seawater-analysis.html\" class=\"feature-image float-center\"\u003e\u003cspan class=\"feature-header border-after--green-fade h4\"\u003eStainless steel sample well\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003eEasy to clean and corrosion-resistant\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature cell\"\u003e\n\u003cimg alt=\"\" src=\"https:\/\/www.hannainst.com\/hi96822-digital-refractometer-for-seawater-analysis.html\" class=\"feature-image float-center\"\u003e\u003cspan class=\"feature-header border-after--green-fade h4\"\u003eAutomatic Temperature Compensation (ATC)\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003eSamples automatically compensated for temperature variations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification Name\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI96822\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSalinity Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 to 50 PSU; 0 to 150 ppt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSalinity Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 PSU; 1 ppt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSalinity Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±2 PSU; ±2 ppt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecific Gravity Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.000 to 1.114\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecific Gravity Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.001\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecific Gravity Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±0.002\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.0 to 80.0°C (32.0 to 176.0°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1°C (0.1°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±0.3°C (±0.5°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAutomatic Shut-Off\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eafter three minutes of non-use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery Type \/ Life\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9V \/ approximately 5000 readings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnclosure Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIP65\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e192 x 102 x 67 mm (7.6 x 4.01 x 2.6”)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e420 g (14.8 oz.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRefractometer Light Source\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eyellow LED\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRefractometer Temperature Compensation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eautomatic between 10 and 40°C (50 to 104°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimum Sample Volume\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100 μL (to cover prism totally)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSample Cell\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003estainless steel ring and flint glass prism\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMeasurement Time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eapproximately 1.5 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrdering Information\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSupplied with battery and instruction manual.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HANNA Instruments","offers":[{"title":"Default Title","offer_id":41466850574423,"sku":"HI96822","price":299.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/files\/HI96822_2024-1200x1200-fd60c99a-009a-48f7-b0ac-9a2e79246b53__98540.jpg?v=1742679068"},{"product_id":"digital-refractometer-for-seawater-analysis-hi96822-copy","title":"HI96822 Digital Seawater Refractometer | Salinity \u0026 Specific Gravity | Hanna","description":"\u003cp\u003eThe HI96822 is a rugged, portable digital refractometer designed for the measurement of salinity of natural or artificial seawater. The HI96822 displays results in three popular measurement units: Practical Salinity Units (PSU), salinity in parts per thousands (ppt) and specific gravity (S.G. (20\/20)). The instrument's high accuracy and simple operation gives reliable results each and every time. All readings are automatically compensated for temperature variations and displayed within a 1.5 second response time. The sealed flint glass prism and stainless steel well are easy to clean. Just wipe with a soft cloth in preparation for the next sample.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSample size as small as 2 metric drops (100 μl)\u003c\/li\u003e\n\u003cli\u003eSealed stainless steel well with high-grade optical prism made of flint glass\u003c\/li\u003e\n\u003cli\u003eFast 1.5 second response time for temperature compensated readings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y\" data-detail-item=\"\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003cp\u003eThe HI96822 Digital Refractometer eliminates the uncertainty associated with mechanical refractometers by measuring the refractive index to determine the salinity of natural and artificial seawater including brackish, ocean water or saltwater aquarium. The instrument converts the refractive index of a sample to PSU, ppt and specific gravity. These conversions are based on respected scientific publications using the physical properties of seawater (not sodium chloride). The HI96822 is an easy to use tool for measuring salinity in natural and artificial seawater whether in the field, lab or at home.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for seawater salinity analysis (not NaCl)\u003c\/li\u003e\n\u003cli\u003eAutomatic Temperature Compensation\u003c\/li\u003e\n\u003cli\u003eHigh accuracy measurements displayed as PSU, ppt and specific gravity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y\" data-detail-item=\"\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003eMaking a Standard Solution\u003c\/h4\u003e\n\u003cp\u003eSodium Chloride solutions can be used to check the accuracy of the meter. The table below lists two Sodium Chloride solutions and their expected ppt Seawater value.\u003cbr\u003e\u003cbr\u003eTo make a Standard NaCl Solution (g\/100 g), follow the procedure below\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePlace container (such as a glass vial or dropper bottle that has a cover) on an analytical balance.\u003c\/li\u003e\n\u003cli\u003eTare the balance.\u003c\/li\u003e\n\u003cli\u003eTo make an X NaCl solution weigh out X grams of high purity dried Sodium Chloride (CAS #: 7647-14-5: MW 58.44) directly into the container.\u003c\/li\u003e\n\u003cli\u003eAdd distilled or deionized water to the beaker so the total weight of the solution is 100g.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eExample Standard NaCl Solution \u003c\/p\u003e\n\u003ctable border=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNaCl (g)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eWater (g)\u003cbr\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTotal\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eExpected Seawater value (ppt)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e3.5% NaCl\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3.50\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e96.50\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e100.000\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e34\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e10% NaCl\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e10.00\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e90.00\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e100.000\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e96\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eRefractive Index\u003c\/h4\u003e\n\u003cp\u003eThe HI96822 takes measurements based on a sample’s refractive index. Refractive index is a measurement of how light behaves as it passes through the sample. Depending on the sample’s composition, the light will refract and reflect differently. By measuring this activity with a linear image sensor, the sample’s refractive index can be assessed and used to determine its physical properties such as concentration and density. In addition to the linear image sensor, the HI96822 uses an LED light, prism and lens to make measurement possible.\u003c\/p\u003e\n\u003cp\u003eVariations in temperature will affect the accuracy of refractometry readings, so the use of temperature compensation is highly recommended for reliable results. The HI96822 contains a built-in temperature sensor and is programmed specialized algorithms then apply temperature compensation to the measurement and convert the refractive index to PSU (Practical Salinity Units), ppt (part per thousand) or S.G. (Specific Gravity) (20\/20). PSU is defined as the conductivity ratio of seawater to a standard KCl solution. It is based upon the work of the UNESCO, ICES, SCOR, and IAPSO. This information is published in The Joint Panel of Oceanographic Tables and Standards. An older salinity scale is ppt (10-3), where salinity is defined by “the salt content is the weight of the inorganic salts contained in 1 kg of seawater if all bromide and iodide are replaced by an equivalent amount of oxides” (Knudsen, 1901). Specific Gravity (20\/20) is based upon the published relationship between density at 20 °C and the mass of dissolved salts in the seawater sample (CRC Handbook of Chemistry and Physics, 87th Edition).\u003c\/p\u003e\n\u003cp\u003e\u003cimg sizes=\"(max-width: 912px) 100vw, 912px\" srcset=\"https:\/\/www.hannainst.com\/hs-fs\/hubfs\/Refractive_Index_Diagrams.jpg?width=456\u0026amp;name=Refractive_Index_Diagrams.jpg 456w, https:\/\/www.hannainst.com\/hs-fs\/hubfs\/Refractive_Index_Diagrams.jpg?width=912\u0026amp;name=Refractive_Index_Diagrams.jpg 912w, https:\/\/www.hannainst.com\/hs-fs\/hubfs\/Refractive_Index_Diagrams.jpg?width=1368\u0026amp;name=Refractive_Index_Diagrams.jpg 1368w, https:\/\/www.hannainst.com\/hs-fs\/hubfs\/Refractive_Index_Diagrams.jpg?width=1824\u0026amp;name=Refractive_Index_Diagrams.jpg 1824w, https:\/\/www.hannainst.com\/hs-fs\/hubfs\/Refractive_Index_Diagrams.jpg?width=2280\u0026amp;name=Refractive_Index_Diagrams.jpg 2280w, https:\/\/www.hannainst.com\/hs-fs\/hubfs\/Refractive_Index_Diagrams.jpg?width=2736\u0026amp;name=Refractive_Index_Diagrams.jpg 2736w\" width=\"912\" alt=\"Refractive_Index_Diagrams\" src=\"https:\/\/www.hannainst.com\/hs-fs\/hubfs\/Refractive_Index_Diagrams.jpg?width=912\u0026amp;name=Refractive_Index_Diagrams.jpg\"\u003e\u003c\/p\u003e\n\u003ch2 class=\"section-header border-after--green text-center\"\u003eFeatures-at-a-glance\u003c\/h2\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"feature cell\"\u003e\n\u003cimg alt=\"\" src=\"https:\/\/www.hannainst.com\/hi96822-digital-refractometer-for-seawater-analysis.html\" class=\"feature-image float-center\"\u003e\u003cspan class=\"feature-header border-after--green-fade h4\"\u003eOne-point calibration\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003eCalibrate with distilled or deionized water\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature cell\"\u003e\n\u003cimg alt=\"\" src=\"https:\/\/www.hannainst.com\/hi96822-digital-refractometer-for-seawater-analysis.html\" class=\"feature-image float-center\"\u003e\u003cspan class=\"feature-header border-after--green-fade h4\"\u003eSmall sample size\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003eSample size can be as small as 2 metric drops (100 μl)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature cell\"\u003e\n\u003cimg alt=\"\" src=\"https:\/\/www.hannainst.com\/hi96822-digital-refractometer-for-seawater-analysis.html\" class=\"feature-image float-center\"\u003e\u003cspan class=\"feature-header border-after--green-fade h4\"\u003eQuick, accurate results\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003eReadings are displayed in approximately 1.5 seconds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature cell\"\u003e\n\u003cimg alt=\"\" src=\"https:\/\/www.hannainst.com\/hi96822-digital-refractometer-for-seawater-analysis.html\" class=\"feature-image float-center\"\u003e\u003cspan class=\"feature-header border-after--green-fade h4\"\u003eDual-level LCD\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003eThe dual-level LCD displays measurement and temperature readings simultaneously\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature cell\"\u003e\n\u003cimg alt=\"\" src=\"https:\/\/www.hannainst.com\/hi96822-digital-refractometer-for-seawater-analysis.html\" class=\"feature-image float-center\"\u003e\u003cspan class=\"feature-header border-after--green-fade h4\"\u003eBattery indicators\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003eBattery percent level remaining at startup and low battery indicator\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature cell\"\u003e\n\u003cimg alt=\"\" src=\"https:\/\/www.hannainst.com\/hi96822-digital-refractometer-for-seawater-analysis.html\" class=\"feature-image float-center\"\u003e\u003cspan class=\"feature-header border-after--green-fade h4\"\u003eAutomatic shut-off\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003eTo conserve battery life the meter shuts off automatically after three minutes of non-use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature cell\"\u003e\n\u003cimg alt=\"\" src=\"https:\/\/www.hannainst.com\/hi96822-digital-refractometer-for-seawater-analysis.html\" class=\"feature-image float-center\"\u003e\u003cspan class=\"feature-header border-after--green-fade h4\"\u003eIP65 water-resistant protection\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003eWater resistant ABS plastic casing designed to perform under laboratory and field conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature cell\"\u003e\n\u003cimg alt=\"\" src=\"https:\/\/www.hannainst.com\/hi96822-digital-refractometer-for-seawater-analysis.html\" class=\"feature-image float-center\"\u003e\u003cspan class=\"feature-header border-after--green-fade h4\"\u003eStainless steel sample well\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003eEasy to clean and corrosion-resistant\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature cell\"\u003e\n\u003cimg alt=\"\" src=\"https:\/\/www.hannainst.com\/hi96822-digital-refractometer-for-seawater-analysis.html\" class=\"feature-image float-center\"\u003e\u003cspan class=\"feature-header border-after--green-fade h4\"\u003eAutomatic Temperature Compensation (ATC)\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003eSamples automatically compensated for temperature variations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification Name\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI96822\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSalinity Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 to 50 PSU; 0 to 150 ppt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSalinity Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 PSU; 1 ppt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSalinity Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±2 PSU; ±2 ppt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecific Gravity Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.000 to 1.114\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecific Gravity Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.001\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecific Gravity Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±0.002\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.0 to 80.0°C (32.0 to 176.0°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1°C (0.1°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±0.3°C (±0.5°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAutomatic Shut-Off\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eafter three minutes of non-use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery Type \/ Life\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9V \/ approximately 5000 readings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnclosure Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIP65\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e192 x 102 x 67 mm (7.6 x 4.01 x 2.6”)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e420 g (14.8 oz.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRefractometer Light Source\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eyellow LED\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRefractometer Temperature Compensation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eautomatic between 10 and 40°C (50 to 104°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimum Sample Volume\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100 μL (to cover prism totally)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSample Cell\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003estainless steel ring and flint glass prism\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMeasurement Time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eapproximately 1.5 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrdering Information\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSupplied with battery and instruction manual.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HANNA Instruments","offers":[{"title":"Default Title","offer_id":41621284880471,"sku":"HI96822-BOX","price":359.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/files\/HI96822-BOX.png?v=1742679068"},{"product_id":"hanna-hi98319-marine-salinity-tester-aquarium-seawater","title":"Hanna HI98319 Marine Salinity Tester - Waterproof ppt\/PSU\/S.G. for Aquariums \u0026 Seawater","description":"\u003cp\u003eDesigned to bring simplicity to salinity testing, the HI98319 Marine Salinity Tester measures conductivity (EC) to determine the salinity of natural and artificial seawater. Within seconds, the salinity and temperature are digitally displayed on the LCD.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eDisplays results in parts per thousand (ppt), Practical Salinity Units (PSU), or specific gravity (S.G.).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eComes with all the necessary solutions and batteries- everything you need to get started measuring right away.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIdeal for testing salinity in aquariums, field, and industrial settings.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"col2-detail-group grid-x grid-padding-x grid-padding-y align-right\"\u003e\n\u003cdiv class=\"cell small-12  border-after--blue-wide\"\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv data-details=\"\" class=\"cell small-12 large-auto\"\u003e\n\u003cdiv data-detail-item=\"\" class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003eBetter Features for Better Testing\u003c\/h4\u003e\n\u003cp\u003eAn onscreen stability indicator ensures the highest level of confidence in your results. The selectable auto-off feature prolongs battery life for peace-of-mind and energy savings if the meter is accidentally left on.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-detail-item=\"\" class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003ePocket Sized\u003c\/h4\u003e\n\u003cp\u003eThe compact size makes the HI98319 Marine Salinity Tester ideal for on-the-go testing. The multilevel LCD display provides at-a-glance salinity and temperature readings from any angle while dual button operation streamlines the testing process for any user.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-detail-item=\"\" class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003eLong Battery Life\u003c\/h4\u003e\n\u003cp\u003eThe included CR2032 Li-ion battery provides up to 100 hours of continuous use. The battery icon will blink to let you know it is time to change the battery so you never miss a measurement.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col2-detail-group grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12  border-after--blue-wide\"\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto small-order-1 large-order-2\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/marine-salinity-tester-sensors-hi98319.jpg?width=720\u0026amp;name=marine-salinity-tester-sensors-hi98319.jpg\" alt=\"marine-salinity-tester-sensors-hi98319\" width=\"323\" srcset=\"https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/marine-salinity-tester-sensors-hi98319.jpg?width=360\u0026amp;name=marine-salinity-tester-sensors-hi98319.jpg 360w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/marine-salinity-tester-sensors-hi98319.jpg?width=720\u0026amp;name=marine-salinity-tester-sensors-hi98319.jpg 720w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/marine-salinity-tester-sensors-hi98319.jpg?width=1080\u0026amp;name=marine-salinity-tester-sensors-hi98319.jpg 1080w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/marine-salinity-tester-sensors-hi98319.jpg?width=1440\u0026amp;name=marine-salinity-tester-sensors-hi98319.jpg 1440w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/marine-salinity-tester-sensors-hi98319.jpg?width=1800\u0026amp;name=marine-salinity-tester-sensors-hi98319.jpg 1800w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/marine-salinity-tester-sensors-hi98319.jpg?width=2160\u0026amp;name=marine-salinity-tester-sensors-hi98319.jpg 2160w\" sizes=\"(max-width: 720px) 100vw, 720px\" height=\"323\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv data-details=\"\" class=\"cell small-12 large-auto small-order-2 large-order-1\"\u003e\n\u003cdiv data-detail-item=\"\" class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003eGraphite Sensors\u003c\/h4\u003e\n\u003cp\u003eUnlike stainless steel sensors, graphite sensors reduces polarization effects and does not oxidize for more reliable and accurate readings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-detail-item=\"\" class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003eDurable Casing\u003c\/h4\u003e\n\u003cp\u003eDesigned to withstand the knocks, drops, and spills of real life, the waterproof body ensures top performance in any environment. These meters are totally protected against dust and water intrusion from any direction.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-detail-item=\"\" class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003eIntegrated Temperature Probe\u003c\/h4\u003e\n\u003cp\u003eConductivity measurements are very sensitive to temperature variations. HI98319 has an exposed temperature sensor to ensure fast, accurately compensated readings even during sudden temperature fluctuations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col2-detail-group grid-x grid-padding-x grid-padding-y align-right\"\u003e\n\u003cdiv class=\"cell small-12\"\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/marine-salinity-tester-kit-hi98319.jpg?width=720\u0026amp;name=marine-salinity-tester-kit-hi98319.jpg\" alt=\"marine-salinity-tester-kit-hi98319\" width=\"720\" srcset=\"https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/marine-salinity-tester-kit-hi98319.jpg?width=360\u0026amp;name=marine-salinity-tester-kit-hi98319.jpg 360w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/marine-salinity-tester-kit-hi98319.jpg?width=720\u0026amp;name=marine-salinity-tester-kit-hi98319.jpg 720w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/marine-salinity-tester-kit-hi98319.jpg?width=1080\u0026amp;name=marine-salinity-tester-kit-hi98319.jpg 1080w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/marine-salinity-tester-kit-hi98319.jpg?width=1440\u0026amp;name=marine-salinity-tester-kit-hi98319.jpg 1440w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/marine-salinity-tester-kit-hi98319.jpg?width=1800\u0026amp;name=marine-salinity-tester-kit-hi98319.jpg 1800w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/marine-salinity-tester-kit-hi98319.jpg?width=2160\u0026amp;name=marine-salinity-tester-kit-hi98319.jpg 2160w\" sizes=\"(max-width: 720px) 100vw, 720px\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv data-details=\"\" class=\"cell small-12 large-auto\"\u003e\n\u003cdiv data-detail-item=\"\" class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003cp\u003eWe believe that buying a tester should be simple. Your HI98319 Marine Salinity Tester is equipped with everything you need for successful testing right out of the box.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-detail-item=\"\" class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003e35.00 ppt Calibration Standard Sachet Solution (2)\u003c\/h4\u003e\n\u003cp\u003eWhen performing a calibration it is important that the correct buffers are used. We include some starter buffer to get you going. The single-use sachets are individually sealed so you use fresh buffer each time you calibrate.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-detail-item=\"\" class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003eProtective Case\u003c\/h4\u003e\n\u003cp\u003eYour tester comes with a complimentary carrying case to keep your tester safe from potential drops or bumps when not in use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HANNA Instruments","offers":[{"title":"Default Title","offer_id":41742591164503,"sku":"HI98319","price":99.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/files\/HI98319-Front-F_2-1200x1200__20105.jpg?v=1748614527"},{"product_id":"hanna-hi981304-pool-ph-ec-tds-combo-tester-waterproof-3-in-1-meter","title":"Hanna HI981304 Pool pH\/EC\/TDS Combo Tester | Waterproof 3-in-1 Meter | Replaceable Electrode","description":"\u003cp\u003e\u003cstrong\u003eTest pool and spa water with professional accuracy\u003c\/strong\u003e using the Hanna Instruments HI981304 Pool Line waterproof combo meter. This 3-in-1 handheld tester measures pH, EC (electrical conductivity), and TDS (total dissolved solids) with laboratory-grade precision, designed specifically for swimming pools, hot tubs, and spas.\u003c\/p\u003e\n\n\u003ch4\u003eKey Professional Features:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterproof and floats:\u003c\/strong\u003e IP67 rated design floats in water for easy poolside testing without worry\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-accuracy pH:\u003c\/strong\u003e ±0.05 pH accuracy with 0.01 pH resolution and replaceable HI73127 electrode\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-range EC\/TDS:\u003c\/strong\u003e Measures 0.00 to 20.00 mS\/cm EC or 0.00 to 10.00 ppt TDS for complete water quality analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelectable TDS conversion:\u003c\/strong\u003e Choose 0.45 or 1.0 conversion factor to match your testing protocol\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic Temperature Compensation:\u003c\/strong\u003e Built-in ATC ensures accurate readings across temperature ranges (0-60°C \/ 32-140°F)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraphite EC\/TDS probe:\u003c\/strong\u003e Amperometric sensor reduces polarization effects and resists oxidation for long-term reliability\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eUser-Friendly Design:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge LCD display:\u003c\/strong\u003e Shows stability indicator, low-battery warning, and calibration tags for confident measurements\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHOLD button:\u003c\/strong\u003e Freeze readings for easier recording and documentation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuto-calibration:\u003c\/strong\u003e One or two-point pH calibration with standard buffers (4.01\/7.01\/10.01 or 4.01\/6.86\/9.18)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery Error Prevention System (BEPS):\u003c\/strong\u003e Alerts you before battery depletion affects accuracy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuto shut-off:\u003c\/strong\u003e Conserves battery with 8-minute auto-off (approx. 100 hours continuous use)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight and portable:\u003c\/strong\u003e Only 100g (3.5 oz) for easy one-handed operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProfessional Applications:\u003c\/h4\u003e\n\u003cp\u003eEssential for pool service professionals, spa maintenance technicians, aquatic facility managers, and residential pool owners who demand accurate water chemistry monitoring. Perfect for routine maintenance, troubleshooting water balance issues, and ensuring safe, comfortable swimming conditions.\u003c\/p\u003e\n\n\u003ch4\u003eComplete Technical Specifications:\u003c\/h4\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI981304\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003epH Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.00 to 14.00 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003epH Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.01 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003epH Accuracy (@25°C\/77°F)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±0.05 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003epH Calibration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAutomatic, one or two-point with two sets of standard buffers (pH 4.01\/7.01\/10.01 or 4.01\/6.86\/9.18)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEC Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.00 to 20.00 mS\/cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEC Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.01 mS\/cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEC Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±2% F.S.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEC Calibration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAutomatic, one point at 12.88 mS\/cm or 6.44 ppt (g\/L)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTDS Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.00 to 10.00 g\/L (ppt)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTDS Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.01 ppt (g\/L)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTDS Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±2% F.S.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTDS Calibration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAutomatic, one point at 12.88 mS\/cm or 6.44 ppt (g\/L)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.0 to 60.0°C \/ 32.0 to 140.0°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1°C \/ 0.1°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±0.5°C \/ ±1°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003epH Electrode\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI73127 (replaceable, included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAutomatic Shut-Off\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAuto-off after 8 minutes of non-use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery Type\/Life\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.5V (4) \/ approx. 100 hours of continuous use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnvironment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 to 50°C (32 to 122°F), RH max 100%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e163 x 40 x 26 mm (6.4 x 1.6 x 1.0\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100 g (3.5 oz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eWhat's Included:\u003c\/h4\u003e\n\u003cp\u003eHI981304 comes complete with HI73127 replaceable pH electrode, HI73128 electrode removal tool, pH 4.01 buffer solution sachet, pH 7.01 buffer solution sachet, 12880 µS\/cm conductivity standard sachet, 6.44 ppt TDS standard sachet, batteries, and instructions.\u003c\/p\u003e\n\n\u003ch4\u003eProfessional-Grade Quality:\u003c\/h4\u003e\n\u003cp\u003eManufactured in Romania by Hanna Instruments to exacting standards. The HI981304 combines the convenience of a handheld tester with the accuracy of laboratory equipment, making it the ideal choice for professionals and serious pool owners who refuse to compromise on water quality.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eReplacement electrodes and calibration solutions available separately. Regular calibration recommended for maintaining measurement accuracy.\u003c\/em\u003e\u003c\/p\u003e","brand":"HANNA Instruments","offers":[{"title":"Default Title","offer_id":41755388903511,"sku":"HI981304","price":224.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/files\/HI981304_angle-Cat_720x720__23342__08954.jpg?v=1749255954"},{"product_id":"hanna-hi97115-marine-master-photometer-bluetooth-waterproof","title":"Hanna HI97115 Marine Master Photometer - 9 Parameter Bluetooth Water Tester","description":"\u003cdiv class=\"productView rca-product-view\" data-event-type=\"product\" data-entity-id=\"7276\" data-name=\"Marine Master Waterproof Wireless Multiparameter Photometer\" data-product-category=\"Industry\/Water, \n            Parameters\/P - Z\/pH, \n            Product\/Aquarium, \n            Product\/Meters, \n            Product\/Meters\/Portable meters, \n            Product\/Meters\/Photometers, \n            Brands\/Marine Line, \n            Parameters\/G - O\/Nitrite, \n            Parameters\/P - Z\/Phosphate, \n            Parameters\/G - O\/Magnesium, \n            Parameters\/G - O\/Nitrate, \n            Parameters\/A - F\/Calcium, \n            Parameters\/A - F\/Alkalinity, \n            Parameters\/A - F\/Ammonia, \n            Black Friday Stock Up\" data-product-brand=\"Dangerous Goods\" data-product-price=\"499.99\" data-product-variant=\"single-product-option\"\u003e\n\u003csection class=\"productView-details product-options\"\u003e\n\u003cdiv class=\"productView-shortDescription\"\u003e\n\u003cp\u003eIdeal for testing saltwater aquariums, reef tanks, and other marine and aquaculture applications.\u003c\/p\u003e\nThe HI97115 is a compact and versatile Marine multiparameter photometer designed to accurately determine pH, Alkalinity, Ammonia, Calcium, Magnesium, Nitrate, Nitrite, and Phosphate levels in aquariums and marine biology applications. The photometer is suitable for field and bench measurements.\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe HI97115 can be used as a stand-alone photometer or can be connected to the Hanna Lab App with a compatible smart device via the integrated Bluetooth\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003emodule. When connected, Hanna Lab App functions include measurement with the ability to add notes, data logging with extended storage capacity, data sharing, and the ability to create and save method groups.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNo warm up time needed before taking a measurement.\u003c\/li\u003e\n\u003cli\u003eTutorial mode for easy step-by-step instructions.\u003c\/li\u003e\n\u003cli\u003eCAL Check\u003csup\u003eTM\u003c\/sup\u003e for performance verification and calibration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003cdiv data-content-region=\"product-before-description\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"productView-description\" data-event-type=\"product\"\u003e\n\u003csection data-content-region=\"product-description-split\"\u003e\u003c\/section\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003csection class=\"banner--product-col2-details grid-container\"\u003e\n\u003cdiv class=\"col2-detail-group grid-x grid-padding-x grid-padding-y align-right\"\u003e\n\u003cdiv class=\"cell small-12  border-after--blue-wide\"\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\" data-details=\"\"\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y\" data-detail-item=\"\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003cp\u003eThe photometer has an advanced optical system that uses a Light Emitting Diode and a narrow band interference filter for accurate, repeatable readings. The optical system is sealed from outside dust, dirt, and water.\u003c\/p\u003e\n\u003cp\u003eThe meter uses an exclusive positive-locking system to ensure that the cuvettes are placed into the holder in the same position every time.\u003c\/p\u003e\n\u003cp\u003eWith the CAL Check™ functionality, users are able to validate the performance of the instrument at any time. CAL Check™ cuvettes are certified against NIST-traceable reference instrument(s).\u003c\/p\u003e\n\u003cp\u003eThe built-in tutorial mode guides users step-by-step through the measurement process. The tutorial mode includes all steps required for sample preparation, the required reagents and quantities.\u003c\/p\u003e\n\u003cp\u003eSuitable for field or bench measurements, the photometer features:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTest capabilities for 9 parameters using 1 device\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNEW!\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eComes with free Hanna Lab app, connects via Bluetooth for easy data tracking, exporting and analysis\u003c\/li\u003e\n\u003cli\u003eSophisticated optical system\u003c\/li\u003e\n\u003cli\u003eMeter validation using certified CAL Check™ cuvettes\u003c\/li\u003e\n\u003cli\u003eTutorial mode guides the user step-by-step\u003c\/li\u003e\n\u003cli\u003eOption to assign locations to logged readings\u003c\/li\u003e\n\u003cli\u003eAuto logging\u003c\/li\u003e\n\u003cli\u003eWaterproof IP67. The case and device both float on water.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col2-detail-group grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12  border-after--blue-wide\"\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto small-order-1 large-order-2\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/product\/HI97115_front_720x720.jpg?width=720\u0026amp;height=720\u0026amp;name=HI97115_front_720x720.jpg\" sizes=\"(max-width: 720px) 100vw, 720px\" srcset=\"https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/product\/HI97115_front_720x720.jpg?width=360\u0026amp;height=360\u0026amp;name=HI97115_front_720x720.jpg 360w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/product\/HI97115_front_720x720.jpg?width=720\u0026amp;height=720\u0026amp;name=HI97115_front_720x720.jpg 720w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/product\/HI97115_front_720x720.jpg?width=1080\u0026amp;height=1080\u0026amp;name=HI97115_front_720x720.jpg 1080w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/product\/HI97115_front_720x720.jpg?width=1440\u0026amp;height=1440\u0026amp;name=HI97115_front_720x720.jpg 1440w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/product\/HI97115_front_720x720.jpg?width=1800\u0026amp;height=1800\u0026amp;name=HI97115_front_720x720.jpg 1800w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/product\/HI97115_front_720x720.jpg?width=2160\u0026amp;height=2160\u0026amp;name=HI97115_front_720x720.jpg 2160w\" alt=\"HI97115_front_720x720\" width=\"720\" height=\"720\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cell small-12 large-auto small-order-2 large-order-1\" data-details=\"\"\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y\" data-detail-item=\"\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003eCAL Check\u003csup\u003e\u003cspan\u003e \u003c\/span\u003eTM\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eValidation\u003c\/h4\u003e\n\u003cp\u003eHanna’s exclusive CAL Check\u003csup\u003e\u003cspan\u003e \u003c\/span\u003eTM\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003efeature provides a stress-free, straightforward way to ensure your photometer is working properly. Simply insert the certified CAL Check\u003csup\u003e\u003cspan\u003e \u003c\/span\u003eTM\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003estandards and let your meter guide you through validation. If your photometer is out of specification for any reason, simply calibrate to your standard.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y\" data-detail-item=\"\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003eOn-Screen Tutorials\u003c\/h4\u003e\n\u003cp\u003eThe built-in tutorial mode guides users step-by-step through the measurement process. It includes all steps required for sample preparation, the required reagents, and quantities.\u003c\/p\u003e\n\u003cp\u003eTutorial mode can be enabled or disabled from the setup menu.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y\" data-detail-item=\"\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003eTank Selection and Multiple Reading Locations Management\u003c\/h4\u003e\n\u003cp\u003eUsers can edit up to 25 different tanks, correlate reading location to any location from the list so that logged data is linked to its reading location.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y\" data-detail-item=\"\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003eData Logging\u003c\/h4\u003e\n\u003cp\u003eMissed a measurement? No need to worry because your photometer will automatically log the last 200 measurements. The results can be viewed instantly using the Log Recall Menu.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col2-detail-group grid-x grid-padding-x grid-padding-y align-right\"\u003e\n\u003cdiv class=\"cell small-12  border-after--blue-wide\"\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/product\/HI97115_Positive-Locking-System_720x710.jpg?width=720\u0026amp;height=710\u0026amp;name=HI97115_Positive-Locking-System_720x710.jpg\" sizes=\"(max-width: 720px) 100vw, 720px\" srcset=\"https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/product\/HI97115_Positive-Locking-System_720x710.jpg?width=360\u0026amp;height=355\u0026amp;name=HI97115_Positive-Locking-System_720x710.jpg 360w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/product\/HI97115_Positive-Locking-System_720x710.jpg?width=720\u0026amp;height=710\u0026amp;name=HI97115_Positive-Locking-System_720x710.jpg 720w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/product\/HI97115_Positive-Locking-System_720x710.jpg?width=1080\u0026amp;height=1065\u0026amp;name=HI97115_Positive-Locking-System_720x710.jpg 1080w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/product\/HI97115_Positive-Locking-System_720x710.jpg?width=1440\u0026amp;height=1420\u0026amp;name=HI97115_Positive-Locking-System_720x710.jpg 1440w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/product\/HI97115_Positive-Locking-System_720x710.jpg?width=1800\u0026amp;height=1775\u0026amp;name=HI97115_Positive-Locking-System_720x710.jpg 1800w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/product\/HI97115_Positive-Locking-System_720x710.jpg?width=2160\u0026amp;height=2130\u0026amp;name=HI97115_Positive-Locking-System_720x710.jpg 2160w\" alt=\"HI97115_Positive-Locking-System_720x710\" width=\"720\" height=\"710\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cell small-12 large-auto\" data-details=\"\"\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y\" data-detail-item=\"\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003eAdvanced Optical System\u003c\/h4\u003e\n\u003cp\u003eA Light Emitting Diode (LED) provides more light while using less power and a narrow band interference filter results in more accurate and repeatable readings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y\" data-detail-item=\"\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003eLarge Cuvette Size\u003c\/h4\u003e\n\u003cp\u003eThe 25-mm path length cuvette allows light to pass though more of the sample ensuring accurate measurements even in low-absorbance samples.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y\" data-detail-item=\"\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003ePositive Locking System\u003c\/h4\u003e\n\u003cp\u003eCuvettes are placed into the holder in the same position every time by ensuring that the notch on the cap is positioned securely in the cell’s groove.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y\" data-detail-item=\"\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003ePortable Design\u003c\/h4\u003e\n\u003cp\u003eMade to fit comfortably in your hand for on-the-go testing or sit on a table for benchtop use, a backlit LCD display provides at-a-glance readings from any angle, day or night. The supplied AA batteries provide life for more than 800 measurements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv data-content-region=\"product-description-split\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003csection class=\"banner--product-accordions\"\u003e\n\u003cdiv class=\"grid-container\"\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y align-center\"\u003e\n\u003cdiv class=\"cell small-12\"\u003e\n\u003cul class=\"accordion\" data-accordion=\"\" data-options=\"allowAllClosed: true; multiExpand: true;\"\u003e\n\u003cli class=\"accordion-item\" data-accordion-item=\"\"\u003eParameters\n\u003cdiv class=\"accordion-content is-open\" data-tab-content=\"\"\u003e\n\u003cdiv id=\"hs_cos_wrapper_widget_10855605870_\" class=\"hs_cos_wrapper hs_cos_wrapper_widget hs_cos_wrapper_type_inline_rich_text\" data-hs-cos-general-type=\"widget\" data-hs-cos-type=\"inline_rich_text\" data-hs-cos-field=\"content\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e \u003c\/th\u003e\n\u003cth\u003eRange\u003c\/th\u003e\n\u003cth\u003eResolution\u003c\/th\u003e\n\u003cth\u003eAccuracy at 25 °C (77 °F)\u003c\/th\u003e\n\u003cth\u003eLED\u003c\/th\u003e\n\u003cth\u003eDescription\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH\u003c\/td\u003e\n\u003ctd\u003e6.3 to 8.6 pH\u003c\/td\u003e\n\u003ctd\u003e0.1 pH\u003c\/td\u003e\n\u003ctd\u003e±0.2 pH of reading\u003c\/td\u003e\n\u003ctd\u003e525 nm\u003c\/td\u003e\n\u003ctd\u003eColorimetric Adaptation of Phenol Red Method.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlkalinity\u003c\/td\u003e\n\u003ctd\u003e0.0 to 20.0 dKH\u003c\/td\u003e\n\u003ctd\u003e0.1 dKH\u003c\/td\u003e\n\u003ctd\u003e±0.3 dKH ±5 % of reading\u003c\/td\u003e\n\u003ctd\u003e610 nm\u003c\/td\u003e\n\u003ctd\u003eColorimetric Method. Reaction causes a distinctive range of colors from yellow to greenish blue to develop.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmmonia\u003c\/td\u003e\n\u003ctd\u003e0.00 to 2.50 ppm(as NH\u003csub\u003e\u003cspan\u003e \u003c\/span\u003e3\u003c\/sub\u003e\u003cspan\u003e \u003c\/span\u003e)\u003c\/td\u003e\n\u003ctd\u003e0.01 ppm\u003c\/td\u003e\n\u003ctd\u003e±0.05 ppm ±5% of reading\u003c\/td\u003e\n\u003ctd\u003e610 nm\u003c\/td\u003e\n\u003ctd\u003eAdaptation of the Salicylate Method. The Reaction between Ammonia and Ammonium and the reagent causes a blue‑green tint in the sample.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCalcium\u003c\/td\u003e\n\u003ctd\u003e200 to 600 ppm\u003c\/td\u003e\n\u003ctd\u003e1 ppm\u003c\/td\u003e\n\u003ctd\u003e±6 % of reading\u003c\/td\u003e\n\u003ctd\u003e610 nm\u003c\/td\u003e\n\u003ctd\u003eAdaptation of Zincon Method.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMagnesium\u003c\/td\u003e\n\u003ctd\u003e1000 to 1800 ppm (as Mg\u003csup\u003e\u003cspan\u003e \u003c\/span\u003e2+\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003e)\u003c\/td\u003e\n\u003ctd\u003e5 ppm\u003c\/td\u003e\n\u003ctd\u003e±5 % of reading\u003c\/td\u003e\n\u003ctd\u003e610 nm\u003c\/td\u003e\n\u003ctd\u003eAdaptation of Colorimetric EDTA Method using calmagite indicator. Reaction between magnesium and the reagents causes a blue to violet tint in the sample.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNitrate LR\u003c\/td\u003e\n\u003ctd\u003e0.00 to 5.00 ppm(as NO\u003csub\u003e\u003cspan\u003e \u003c\/span\u003e3\u003c\/sub\u003e\u003cspan\u003e \u003c\/span\u003e\u003csup\u003e¯\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003e)\u003c\/td\u003e\n\u003ctd\u003e0.01 ppm\u003cbr\u003e±0.25 ppm\u003c\/td\u003e\n\u003ctd\u003e±2 % of reading\u003c\/td\u003e\n\u003ctd\u003e525 nm\u003c\/td\u003e\n\u003ctd\u003eZinc Reduction Method. Reaction between nitrate and the reagent causes a pink tint in the sample.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNitrate HR\u003c\/td\u003e\n\u003ctd\u003e0.0 to 75.0 ppm (as NO\u003csub\u003e\u003cspan\u003e \u003c\/span\u003e3\u003c\/sub\u003e\u003cspan\u003e \u003c\/span\u003e\u003csup\u003e¯\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003e)\u003c\/td\u003e\n\u003ctd\u003e0.1 ppm\u003c\/td\u003e\n\u003ctd\u003e±2.0 ppm\u003cbr\u003e±5 % of reading\u003c\/td\u003e\n\u003ctd\u003e525 nm\u003c\/td\u003e\n\u003ctd\u003eZinc Reduction Method. Reaction between nitrate and the reagent causes a pink tint in the sample.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNitrite ULR\u003c\/td\u003e\n\u003ctd\u003e0 to 200 ppb (as NO\u003cspan\u003e \u003c\/span\u003e\u003csub\u003e2\u003c\/sub\u003e\u003cspan\u003e \u003c\/span\u003e\u003csup\u003e-\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003e‑N)\u003c\/td\u003e\n\u003ctd\u003e1 ppb\u003c\/td\u003e\n\u003ctd\u003e±10 ppb\u003cbr\u003e±4 % of reading\u003c\/td\u003e\n\u003ctd\u003e525 nm\u003c\/td\u003e\n\u003ctd\u003eAdaptation of EPA Diazotization Method 354.1. Reaction between nitrite and the reagent causes a pink tint in the sample.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhosphate ULR\u003c\/td\u003e\n\u003ctd\u003e0.00 to 0.90 ppm\u003c\/td\u003e\n\u003ctd\u003e0.01 ppm\u003c\/td\u003e\n\u003ctd\u003e±0.02 ppm\u003cbr\u003e±5 % of reading\u003c\/td\u003e\n\u003ctd\u003e610 nm\u003c\/td\u003e\n\u003ctd\u003eAdaptation of Standard Methods for Examination of Water and Wastewater, 20th Edition, Ascorbic Acid Method. Reaction between phosphate and the reagent causes a blue tint in the sample.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's Included\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSample cuvette (2 pcs.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSample cuvette cap (2 pcs.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMarine pH reagent, 30 mL dropper (1 pc.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMarine Alkalinity reagent, 30 mL (1 pc.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMarine Ammonia starter kit - reagent A, 30 mL dropper (1 pc.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMarine Ammonia starter kit - reagent B and C (reagent for 25 tests, each)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMarine Calcium starter kit - reagent A, 30 mL (1 pc.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMarine Calcium starter kit - reagent B starter kit (reagent for 25 tests)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMarine Magnesium starter kit - reagent A, 120 mL bottle (1 pc.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMagnesium indicator reagent (for 25 tests)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMarine Nitrate High Range starter kit (reagent for 25 tests)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMarine Nitrite Ultra Low Range starter kit (reagent for 25 tests)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMarine Phosphate Ultra Low Range starter kit (reagent for 25 tests)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1 mL graduated syringe with tip (2 pcs.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinipipette with tip (1 pc.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3 mL Pasteur pipette (2 pcs.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1.5V AA Alkaline batteries (3 pcs.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCloth for wiping cuvettes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eScissors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstrument quality certificate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eA quick reference guide with instructions for manual download\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003esku\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI97115-web\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAlkalinity Marine Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.0 to 20.0 dKH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAlkalinity Marine Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1 dKH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAlkalinity Marine Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±0.3 dKH ±5% of reading at 25 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAlkalinity Marine Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eColorimetric Method\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCalcium Marine Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e200 to 600 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCalcium Marine Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCalcium Marine Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±6 % of reading at 25 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCalcium Marine Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eadaptation of the Zincon Method\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMagnesium Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1000 to 1800 ppm (as Mg²+)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMagnesium Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMagnesium Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±5% of reading at 25 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMagnesium Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAdaptation of the Colorimetric EDTA Method using calmagite indicator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003epH Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6.3 to 8.6 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003epH Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1 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HI782 Marine Nitrate High Range Checker HC - Saltwater Aquarium Reef Testing","description":"\u003ch2\u003eProfessional High Range Nitrate Testing for Saltwater Aquariums \u0026amp; Reef Tanks\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eHanna Instruments HI782 Marine Nitrate High Range Checker HC\u003c\/strong\u003e delivers lab-grade accuracy for monitoring nitrate levels in saltwater aquariums, reef tanks, and marine aquaculture. This portable colorimeter measures nitrate from 0 to 75 ppm NO₃⁻-N with digital precision, eliminating the guesswork and color-matching errors common with traditional test strips and liquid kits.\u003c\/p\u003e\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Range Precision:\u003c\/strong\u003e Measures 0 to 75 ppm NO₃⁻-N with ±1 ppm accuracy—ideal for marine systems with elevated nitrate levels\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine-Specific Formulation:\u003c\/strong\u003e Designed specifically for saltwater testing, accounting for the unique chemistry of marine environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDigital Accuracy:\u003c\/strong\u003e Eliminates subjective color-matching errors with clear digital readout\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimple One-Button Operation:\u003c\/strong\u003e Get reliable results in minutes with intuitive push-button testing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePortable Design:\u003c\/strong\u003e Compact, battery-powered unit for on-site testing anywhere\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCost-Effective:\u003c\/strong\u003e Reusable colorimeter reduces long-term testing costs compared to disposable strips\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional Grade:\u003c\/strong\u003e Trusted by reef aquarists, marine biologists, and aquaculture professionals worldwide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in Romania:\u003c\/strong\u003e European quality manufacturing by Hanna Instruments\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhy Marine Nitrate Testing is Critical\u003c\/h3\u003e\u003cp\u003eNitrate (NO₃⁻) is the final product of the nitrogen cycle in marine aquariums. While less toxic than ammonia or nitrite, elevated nitrate levels cause significant problems in reef tanks and saltwater systems:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoral Health:\u003c\/strong\u003e High nitrate inhibits coral growth, reduces coloration, and suppresses calcification in SPS and LPS corals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlgae Blooms:\u003c\/strong\u003e Excess nitrate fuels nuisance algae growth including hair algae, bubble algae, and cyanobacteria\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFish Stress:\u003c\/strong\u003e Chronic nitrate exposure weakens immune systems and increases disease susceptibility\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater Clarity:\u003c\/strong\u003e Elevated nitrate contributes to cloudy water and poor water quality\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInvertebrate Sensitivity:\u003c\/strong\u003e Shrimp, anemones, and other invertebrates are sensitive to nitrate accumulation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eReef Aquariums:\u003c\/strong\u003e Monitor nitrate levels to maintain optimal conditions for SPS, LPS, and soft corals. Most reef tanks target nitrate levels between 1-10 ppm, though some systems run ultra-low nutrient (ULNS) or higher nutrient levels depending on coral types.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFish-Only Marine Tanks (FOWLR):\u003c\/strong\u003e Track nitrate buildup from fish waste and feeding to prevent stress and maintain water quality. Marine fish tolerate higher nitrate than corals, but regular monitoring prevents excessive accumulation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMarine Aquaculture:\u003c\/strong\u003e Ensure optimal water quality in commercial fish farming, hatcheries, and breeding operations for species like clownfish, tangs, and marine ornamentals.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePublic Aquariums:\u003c\/strong\u003e Professional-grade testing for large marine displays and life support systems.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eRange: 0.0 to 75.0 ppm (mg\/L) NO₃⁻-N\u003c\/li\u003e\n\u003cli\u003eResolution: 1 ppm\u003c\/li\u003e\n\u003cli\u003eAccuracy: ±1 ppm ±10% of reading\u003c\/li\u003e\n\u003cli\u003eLight Source: LED @ 525 nm\u003c\/li\u003e\n\u003cli\u003eMethod: Cadmium reduction method adaptation\u003c\/li\u003e\n\u003cli\u003eSample Type: Saltwater\/Marine\u003c\/li\u003e\n\u003cli\u003eBattery Type: 1 x AAA (included)\u003c\/li\u003e\n\u003cli\u003eAuto-shutoff: After 3 minutes of non-use\u003c\/li\u003e\n\u003cli\u003eDimensions: 81.5 x 61 x 37.5 mm\u003c\/li\u003e\n\u003cli\u003eWeight: 10 oz\u003c\/li\u003e\n\u003cli\u003eCountry of Origin: Romania\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eHow to Use\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003eFill sample cuvette with 10 mL of aquarium water\u003c\/li\u003e\n\u003cli\u003eAdd HI782 reagent A packet and shake to dissolve\u003c\/li\u003e\n\u003cli\u003eWait 3 minutes for reaction\u003c\/li\u003e\n\u003cli\u003eAdd HI782 reagent B packet and shake vigorously for 1 minute\u003c\/li\u003e\n\u003cli\u003eWait 2 minutes for color development\u003c\/li\u003e\n\u003cli\u003eZero the Checker with the blank sample\u003c\/li\u003e\n\u003cli\u003eInsert prepared sample and read nitrate concentration on digital display\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cp\u003eHI782 Checker HC, 2 sample cuvettes with caps, HI782-25 reagent starter pack (6 tests), AAA battery, instruction manual, and quick start guide.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eImportant Note:\u003c\/strong\u003e This is the HIGH RANGE marine nitrate checker (0-75 ppm). For low range testing (0.00-5.00 ppm), use the HI764 Marine Nitrate Ultra Low Range Checker.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMade in Romania\u003c\/strong\u003e by Hanna Instruments, the world leader in analytical instrumentation with over 40 years of innovation in water testing technology.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eMaintain pristine reef conditions and vibrant coral growth with accurate nitrate monitoring. The HI782 Checker HC is an essential tool for every serious reef aquarist.\u003c\/em\u003e\u003c\/p\u003e","brand":"HANNA Instruments","offers":[{"title":"Default Title","offer_id":41801995976791,"sku":"HI782","price":74.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/files\/HI782-Front-1200x1200__39725.jpg?v=1751991807"},{"product_id":"hanna-marine-magnesium-checker-hc-hi783","title":"Hanna Marine Magnesium Checker HC - HI783","description":"\u003cp\u003eThe first Magnesium test of its kind for saltwater aquariums, our Marine Magnesium Checker® HC (HI783) is just what every reef tank owner needs. Struggling with test kits is now a thing of the past. Stop guessing or interpreting a color change by eye. Get a fast, accurate digital read-out every time. \u003c\/p\u003e\n\u003cp\u003ePerfect for testing and measuring Magnesium levels in saltwater aquariums, reef tanks, and other marine and aquaculture applications.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEasy-to-read, instant digital results\u003c\/li\u003e\n\u003cli\u003eSmall, convenient portable size\u003c\/li\u003e\n\u003cli\u003eUser-friendly, simple directions and steps \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg alt=\"HI783-liz-banne4r\" src=\"https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/HI783-liz-banne4r.jpg?width=2300\u0026amp;height=746\u0026amp;name=HI783-liz-banne4r.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003eFeatures \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSaltwater compatible\u003c\/li\u003e\n\u003cli\u003eDedicated to a single parameter\u003c\/li\u003e\n\u003cli\u003eRange: 1000 to 1800 ppm Magnesium\u003c\/li\u003e\n\u003cli\u003eDetermines the concentration of Magnesium calorimetrically using the Beer-Lambert Principle\u003c\/li\u003e\n\u003cli\u003eOne-button operation\u003c\/li\u003e\n\u003cli\u003eA great alternative to chemical test kits\u003c\/li\u003e\n\u003cli\u003eColor-coded syringes for hassle-free testing\u003c\/li\u003e\n\u003cli\u003eAuto shut-off conserves battery energy\u003c\/li\u003e\n\u003cli\u003eLarge LCD screen with digital read-out\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIncluded\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMarine Magnesium Checker (HI783) supplied with protective case\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReagent set for 25 Magnesium tests (HI783-25)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGlass cuvette and cap (2 pcs.) (HI731315)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 mL syringe with tip and black printing (1 pc.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 mL syringe with tip and blue printing (1 pc.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1.5V AAA Alkaline battery (1 pc.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstruction manual\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eQuick reference guide\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI783\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRange\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1000 to 1800 ppm Magnesium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAccuracy @ 25°C (77°F)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±5% of reading\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLight Source\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLight Emitting Diode @ 610 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLight Detector\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSilicon photocell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMethod\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAdaptation of the colorimetric EDTA method using calmagite indicator. The reaction between magnesium and the reagents causes a blue to violet tint in the sample.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.5V AAA Alkaline\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAuto shut-off\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAfter 10 minutes of non-use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnvironment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 to 50 °C (32 to 122 °F) max. 95% RH non-condensing. 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This handheld photometer delivers lab-quality results with simple operation—just add reagent, insert the cuvette, and read alkalinity on the easy-to-read LCD display. Essential for maintaining optimal coral health and reef tank stability.\u003c\/p\u003e\u003ch3\u003eKey Features:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine Alkalinity Testing:\u003c\/strong\u003e Measures alkalinity from 0 to 300 ppm (mg\/L) CaCO₃ with ±5 ppm accuracy—ideal for reef tanks, SPS\/LPS coral systems, and saltwater aquariums\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePortable \u0026amp; Handheld:\u003c\/strong\u003e Compact Checker HC design fits in your pocket for testing anywhere—perfect for aquarium maintenance and water changes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLab-Quality Results:\u003c\/strong\u003e Advanced photometric technology delivers accurate, repeatable measurements comparable to expensive benchtop instruments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimple Operation:\u003c\/strong\u003e Easy three-step process—fill cuvette, add reagent, read result—no complex titrations or color matching\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLCD Display:\u003c\/strong\u003e Large, easy-to-read screen shows alkalinity in ppm (mg\/L) CaCO₃\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuto-Off Function:\u003c\/strong\u003e Conserves battery life with automatic shutdown after 10 minutes of non-use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAL Check:\u003c\/strong\u003e Built-in validation feature verifies meter performance for quality assurance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Kit:\u003c\/strong\u003e Includes meter, sample cuvettes, reagents for initial testing, and rigid carrying case\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eModel: HI755\u003c\/li\u003e\n\u003cli\u003eParameter: Alkalinity (as CaCO₃)\u003c\/li\u003e\n\u003cli\u003eRange: 0 to 300 ppm (mg\/L)\u003c\/li\u003e\n\u003cli\u003eResolution: 1 ppm\u003c\/li\u003e\n\u003cli\u003eAccuracy: ±5 ppm ±5% of reading @ 25°C\u003c\/li\u003e\n\u003cli\u003eMethod: Colorimetric method\u003c\/li\u003e\n\u003cli\u003eLight Source: LED @ 466 nm\u003c\/li\u003e\n\u003cli\u003eLight Detector: Silicon photocell\u003c\/li\u003e\n\u003cli\u003eBattery: 1 x 1.5V AAA (included)\u003c\/li\u003e\n\u003cli\u003eAuto-Off: After 10 minutes of non-use\u003c\/li\u003e\n\u003cli\u003eDimensions: 81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5 inches)\u003c\/li\u003e\n\u003cli\u003eWeight: 1 lb\u003c\/li\u003e\n\u003cli\u003eCountry of Origin: Romania\u003c\/li\u003e\n\u003cli\u003eSKU: HI755\u003c\/li\u003e\n\u003cli\u003eBarcode: 765105746207\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications:\u003c\/h3\u003e\u003cp\u003eEssential for reef aquarium alkalinity monitoring (SPS coral, LPS coral, soft coral tanks), marine aquarium water quality management, saltwater aquaculture, coral propagation systems, reef tank maintenance, water change verification, and any saltwater application requiring precise alkalinity measurement. Perfect for reef hobbyists maintaining optimal coral growth conditions, marine aquarium professionals, and coral farmers.\u003c\/p\u003e\u003ch3\u003eWhat's Included:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHI755 Alkalinity Checker HC\u003c\/li\u003e\n\u003cli\u003eSample cuvettes with caps (2)\u003c\/li\u003e\n\u003cli\u003eAlkalinity reagents for initial testing\u003c\/li\u003e\n\u003cli\u003e1.5V AAA battery\u003c\/li\u003e\n\u003cli\u003eInstruction manual\u003c\/li\u003e\n\u003cli\u003eInstrument quality certificate\u003c\/li\u003e\n\u003cli\u003eRigid carrying case\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhy Test Alkalinity in Reef Tanks?\u003c\/h3\u003e\u003cp\u003eAlkalinity (carbonate hardness\/KH) is one of the most critical parameters in reef aquariums. It provides the buffering capacity that stabilizes pH and supplies carbonate ions essential for coral skeleton formation and calcification. Optimal alkalinity levels (typically 7-11 dKH or 125-200 ppm) ensure healthy coral growth, vibrant colors, and stable water chemistry. Low alkalinity causes pH swings and stunted coral growth, while high alkalinity can lead to precipitation and tissue damage. The HI755's 0-300 ppm range covers the full spectrum of reef tank alkalinity levels for precise monitoring.\u003c\/p\u003e\u003ch3\u003eHow to Use:\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003eFill cuvette with 10 mL saltwater sample to line\u003c\/li\u003e\n\u003cli\u003eAdd HI755 reagent packet and mix thoroughly\u003c\/li\u003e\n\u003cli\u003eWait for color development (1 minute)\u003c\/li\u003e\n\u003cli\u003eInsert cuvette into HI755 Checker HC\u003c\/li\u003e\n\u003cli\u003ePress button to read alkalinity in ppm (mg\/L) CaCO₃\u003c\/li\u003e\n\u003cli\u003eConvert to dKH if desired: dKH = ppm ÷ 17.9\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eReagent Availability:\u003c\/h3\u003e\u003cp\u003eReplacement reagents available separately as HI755-26 (25 tests). Each reagent packet is pre-measured for consistent, accurate results.\u003c\/p\u003e\u003ch3\u003eMaintenance \u0026amp; Care:\u003c\/h3\u003e\u003cp\u003eRinse cuvettes with RO\/DI water after each use to prevent salt buildup. Store in protective case when not in use. Replace battery when low battery indicator appears. Use CAL Check feature periodically to verify meter performance. Keep reagents stored in a cool, dry place away from moisture.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eNote: Reagents sold separately after initial supply is used. For best results, use fresh reagents and follow all testing procedures carefully. Regular CAL Check validation recommended for quality assurance. Results in ppm can be converted to dKH (degrees of carbonate hardness) by dividing by 17.9.\u003c\/em\u003e\u003c\/p\u003e","brand":"HANNA Instruments","offers":[{"title":"Default Title","offer_id":41817313968215,"sku":"HI755","price":74.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/files\/HI755-CheckerHC_Front-1275x1275__68678.jpg?v=1752628266"},{"product_id":"hanna-instruments-freshwater-alkalinity-colorimeter","title":"Hanna Instruments Freshwater Alkalinity Colorimeter","description":"\u003cp\u003eStop wasting time struggling with a color chart. Get accurate water testing results with our simple handheld colorimeter.  Our freshwater alkalinity colorimeter brings you more precise technology from your standard chemical test kit. With direct digital freshwater alkalinity results our handheld colorimeter eliminates the hassle of color matching.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe small size of our handheld colorimeter makes it portable and fit perfectly in your pocket..\u003c\/li\u003e\n\u003cli\u003eResults are achieved easily with simple, one-button operation.\u003c\/li\u003e\n\u003cli\u003eEasy operation and direct results make measurement quick.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe HI775 Checker\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eHC (Handheld Colorimeter) provides a simple, accurate and cost-effective way to measure alkalinity. Present in varying concentrations in freshwater bodies, alkalinity, from carbonate and noncarbonate salts, provides a buffer against drastic pH changes in water. Used in the drinking water treatment process, the concentration of alkalinity dictates which chemicals are used and at what volumes, as well as protecting finished, potable drinking water in the distribution system. Designed as a more accurate alternative to chemical test kits, the HI775 provides quick, accurate results in a few easy steps.\u003c\/p\u003e\n\u003ch4\u003eFeatures at-a-glance:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eEasier to use and more accurate than chemical test kits\u003c\/li\u003e\n\u003cli\u003eDedicated to a single parameter\u003c\/li\u003e\n\u003cli\u003eSmall size, big convenience\u003c\/li\u003e\n\u003cli\u003eIdeal for: Water Quality, Environmental, Education, Industrial\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI775\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRange\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 to 500 ppm CaCO₃\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAccuracy @ 25°C (77°F)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±5 ppm ±5% of reading\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLight Source\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLED @ 610 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLight Detector\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003esilicon photocell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMethod\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ecolorimetric method. The reaction causes a distinctive range of colors from yellow to green to blue to develop\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e(1) 1.5V AAA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAuto shut-off\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eafter ten minutes of non-use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnvironment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 to 50°C (32 to 122°F) RH max 95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e86.0 x 61.0 x 37.5 mm (3.4 x 2.4 x 1.5in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e64 g (2.3 oz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrdering Information\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI775 Checker®HC is supplied with sample cuvettes with caps (2), alkalinity reagent starter kit (reagents for 25 tests), syringe with tip, battery, instructions and quick start guide.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReagent Set\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI775-26 (25 tests)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCalibration Check\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI775-11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"HANNA Instruments","offers":[{"title":"Default Title","offer_id":41817395691607,"sku":"HI775","price":74.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/files\/hi775-checkerhc-front-_1___12662.jpg?v=1752634026"},{"product_id":"hanna-hi98302-dist-2-tds-tester-waterproof-high-range","title":"Hanna HI98302 DiST 2 TDS Tester - High Range 0-10 ppt Waterproof Meter","description":"\u003cp\u003eThe Hanna Instruments HI98302 DiST\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003e2 is a high-range total dissolved solids tester than can measure up to 10.00 ppt (g\/L). The DiST\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003e2 is a rugged and reliable pocket-sized tester for use in the lab or field. This modern looking meter is only 0.7\" thick and extremely ergonomic, fitting comfortably in your hand. This tester keeps things simple with a two-button operation; one for ON\/OFF, the other for calibration.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLarge Multi-level LCD\u003c\/li\u003e\n\u003cli\u003eExposed Temperature Probe for Fast Response\u003c\/li\u003e\n\u003cli\u003eSimple Two-Button Operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003csection class=\"banner--product-col2-details grid-container\"\u003e\n\u003cdiv class=\"col2-detail-group grid-x grid-padding-x grid-padding-y align-right\"\u003e\n\u003cdiv class=\"cell small-12\"\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003eThe DiST\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003e2 features a large multi-level LCD which displays both TDS and temperature readings simultaneously. The TDS readings are displayed with a 0.01 ppt (g\/L) resolution and with an accuracy of ±2% full scale. The TDS range of the HI98302 is from 0.00 to 10.00 ppt (g\/L). An exposed temperature sensor allows for rapid automatic temperature compensated TDS measurements. Temperature can be set to display in ? or ?. The LCD screen has stability and calibration tag indicators. The battery percent level is displayed at start up alerting the user to the remaining battery power that is available.\u003cbr\u003e\u003cbr\u003eTDS readings are performed by an amperometric graphite electrode that resists oxidation, providing better repeatability in measurements. The use of graphite also reduces the polarization effect common with amperometric testers that use two stainless steel pins.\u003cbr\u003e\u003cbr\u003eCalibration is performed by pressing the dedicated calibration button. Once in calibration mode, submerge the probe in 6.44 ppt calibration standard. When the standard value is recognized and stability reached, the meter will automatically accept and store the calibration value.\u003cbr\u003e\u003cbr\u003eSetup options include automatic shut-off timing and temperature unit displayed. Automatic shut-off options are to turn the meter off after 8 minutes, 60 minutes, or disabled. To enter the setup mode the user presses a button located in the battery compartment.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv id=\"hs_cos_wrapper_widget_1563216769928\" class=\"hs_cos_wrapper hs_cos_wrapper_widget hs_cos_wrapper_type_module\" data-hs-cos-general-type=\"widget\" data-hs-cos-type=\"module\"\u003e\n\u003csection class=\"banner--product-features\"\u003e\n\u003cdiv class=\"grid-container features-container\"\u003e\n\u003cdiv class=\"grid-x grid-padding-x align-center feature-block-list\"\u003e\n\u003cdiv class=\"cell small-12 large-10\"\u003e\n\u003ch2 class=\"section-header text-center\"\u003eOverview\u003c\/h2\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y small-up-1 medium-up-2 large-up-3\"\u003e\n\u003cdiv class=\"feature cell\"\u003e\n\u003cimg class=\"feature-image float-center\" src=\"https:\/\/pages.hannainst.com\/hubfs\/001-website\/images\/lcd-hi98302.jpg\" alt=\"lcd-hi98302\"\u003e\u003cspan class=\"feature-header h4\"\u003eMulti-Level LCD\u003c\/span\u003eThe large LCD displays TDS, temperature, calibration tag, battery level and instability indicator.\u003c\/div\u003e\n\u003cdiv class=\"feature cell\"\u003e\n\u003cimg class=\"feature-image float-center\" src=\"https:\/\/pages.hannainst.com\/hubfs\/001-website\/images\/sensors-hi98304.jpg\" alt=\"sensors-hi98304\"\u003e\u003cspan class=\"feature-header h4\"\u003eExposed Temperature Probe\u003c\/span\u003eAn exposed temperature probe allows for an extremely fast and stable TDS measurement.\u003c\/div\u003e\n\u003cdiv class=\"feature cell\"\u003e\n\u003cimg class=\"feature-image float-center\" src=\"https:\/\/pages.hannainst.com\/hubfs\/001-website\/images\/two-buttons-hi98304.jpg\" alt=\"two-buttons-hi98304\"\u003e\u003cspan class=\"feature-header h4\"\u003eTwo-Button Operation\u003c\/span\u003eOnly two buttons for meter operation. One for on\/off and one for calibration.\u003c\/div\u003e\n\u003cdiv class=\"feature cell\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003esku\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI98302U\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTDS Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.00 to 10.00 g\/L (ppt)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTDS resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.01 g\/L (ppt)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTDS Calibration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eautomatic,\u003cbr\u003eone-point at 6.44 ppt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEC\/TDS Temperature Compensation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eautomatic from 0 to 50°C (32 to 122°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEC to TDS Conversion Factor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.0 to 50.0°C\/32.0 to 122.0°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1°C \/ 0.1°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±0.5°C \/ ±1.0°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery Type Life\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCR2032 3V Li-ion \/ approx. 250 hours of continuous use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnvironment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 to 50°C (32 to 122°F),\u003cbr\u003eRH 100% max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e160 x 40 x 17 mm (6.3 x 1.6 x 0.7in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e75 g (2.6 oz.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrder Information\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI98302 (DiST 2) is supplied with CR2032 battery,\u003cbr\u003e6.44 ppt calibration solution sachet (4),\u003cbr\u003estorage\/protection sleeve,\u003cbr\u003einstruction manual and quality certificate.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"HANNA Instruments","offers":[{"title":"Default Title","offer_id":41817967132759,"sku":"HI98302","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/files\/dist2-cover-hi98302__05599.jpg?v=1752684533"},{"product_id":"marine-nitrate-high-range-checker-reagents-25-tests","title":"Hanna Marine Nitrate High Range Checker® Reagents (25 Tests)","description":"\u003cp\u003eThe HI782-25 are the replacement reagents for the HI782 Marine Nitrate High Range Checker\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eHC. These high-quality reagents are manufactured in our state-of-the-art facility and are clearly marked with the lot number and expiration date on each packet for traceability.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePre-made reagents for ease of use\u003c\/li\u003e\n\u003cli\u003ePrepared with high purity chemicals\u003c\/li\u003e\n\u003cli\u003eMarked with expiration date and lot number for traceability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThe HI782-25 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Marine Nitrate High Range Checker\u003c\/span\u003e\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e HC. These reagents follow the Zinc reduction method in which the reaction between nitrate and the reagent causes a pink tint in the sample. By simply adding the packet of HI782-25 reagent to the sample, the reaction will take place and the HI782 will determine the concentration from the color that is produced. The results will be displayed in ppm of nitrate (as NO3–). These reagents are designed to be used with saltwater samples that have an expected range of 0.0 to 75.0 ppm.\u003c\/span\u003e\u003c\/p\u003e","brand":"HANNA Instruments","offers":[{"title":"Default Title","offer_id":41893915787351,"sku":"HI782-25","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/files\/HI782-25-1200x1200-7d1ffd96-0ed7-459e-a9ef-0972cf0a8143_1__61137.1624985293_1.jpg?v=1753898589"},{"product_id":"hanna-hi713-phosphate-checker-low-range-colorimeter","title":"Hanna HI713 Phosphate Checker | Low Range Colorimeter | 0-2.5 mg\/L","description":"\u003ch2\u003eProfessional Low Range Phosphate Colorimeter for Aquariums, Pools \u0026amp; Freshwater Testing\u003c\/h2\u003e\u003cp\u003eThe Hanna HI713 Checker HC is a portable, professional-grade low range phosphate colorimeter designed for accurate phosphate (PO₄³⁻) measurement from 0.00 to 2.50 mg\/L in aquariums, swimming pools, freshwater, and water quality applications. This handheld photometer delivers lab-quality results in the field with simple operation—just add reagent, insert the cuvette, and read phosphate concentration on the easy-to-read LCD display.\u003c\/p\u003e\u003ch3\u003eKey Features:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Range Precision:\u003c\/strong\u003e Measures phosphate from 0.00 to 2.50 mg\/L (ppm) PO₄³⁻ with ±0.04 mg\/L accuracy—ideal for aquariums, pools, and low-phosphate applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePortable \u0026amp; Handheld:\u003c\/strong\u003e Compact Checker HC design fits in your pocket for on-site testing anywhere\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLab-Quality Results:\u003c\/strong\u003e Advanced photometric technology delivers accurate, repeatable measurements comparable to benchtop instruments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimple Operation:\u003c\/strong\u003e Easy three-step process—fill cuvette, add reagent, read result—no complex procedures\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLCD Display:\u003c\/strong\u003e Large, easy-to-read screen shows phosphate concentration in mg\/L (ppm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuto-Off Function:\u003c\/strong\u003e Conserves battery life with automatic shutdown after 10 minutes of non-use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAL Check:\u003c\/strong\u003e Built-in validation feature verifies meter performance for quality assurance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Kit:\u003c\/strong\u003e Includes meter, sample cuvettes, reagents for initial testing, and carrying case\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eModel: HI713\u003c\/li\u003e\n\u003cli\u003eParameter: Phosphate (PO₄³⁻)\u003c\/li\u003e\n\u003cli\u003eRange: 0.00 to 2.50 mg\/L (ppm)\u003c\/li\u003e\n\u003cli\u003eResolution: 0.01 mg\/L\u003c\/li\u003e\n\u003cli\u003eAccuracy: ±0.04 mg\/L ±4% of reading @ 25°C\u003c\/li\u003e\n\u003cli\u003eMethod: Adaptation of ascorbic acid method\u003c\/li\u003e\n\u003cli\u003eLight Source: LED @ 525 nm\u003c\/li\u003e\n\u003cli\u003eLight Detector: Silicon photocell\u003c\/li\u003e\n\u003cli\u003eBattery: 1 x 1.5V AAA (included)\u003c\/li\u003e\n\u003cli\u003eAuto-Off: After 10 minutes of non-use\u003c\/li\u003e\n\u003cli\u003eDimensions: 81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5 inches)\u003c\/li\u003e\n\u003cli\u003eWeight: 1 lb\u003c\/li\u003e\n\u003cli\u003eCountry of Origin: Romania\u003c\/li\u003e\n\u003cli\u003eSKU: HI713\u003c\/li\u003e\n\u003cli\u003eBarcode: 765105745859\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications:\u003c\/h3\u003e\u003cp\u003eEssential for aquarium phosphate monitoring (algae control, plant health), swimming pool water quality (algae prevention, water clarity), freshwater testing, drinking water quality verification, environmental water testing, laboratory analysis, and any application requiring accurate low-range phosphate measurement. Perfect for aquarium hobbyists, pool service professionals, water treatment operators, and environmental consultants.\u003c\/p\u003e\u003ch3\u003eWhat's Included:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHI713 Phosphate Low Range Checker HC\u003c\/li\u003e\n\u003cli\u003eSample cuvettes with caps (2)\u003c\/li\u003e\n\u003cli\u003ePhosphate Low Range reagents for initial testing\u003c\/li\u003e\n\u003cli\u003e1.5V AAA battery\u003c\/li\u003e\n\u003cli\u003eInstruction manual\u003c\/li\u003e\n\u003cli\u003eInstrument quality certificate\u003c\/li\u003e\n\u003cli\u003eRigid carrying case\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhy Test Phosphate Levels?\u003c\/h3\u003e\u003cp\u003ePhosphate testing is critical for preventing algae growth and maintaining water quality. In aquariums, excess phosphates promote nuisance algae growth that competes with plants and corals—optimal levels are typically below 0.05 mg\/L for planted tanks and near zero for reef tanks. In swimming pools, phosphates are nutrients that fuel algae blooms—even with proper chlorine levels, high phosphates (above 100-200 ppb or 0.1-0.2 mg\/L) can cause persistent algae problems and cloudy water. The HI713's low range (0-2.5 mg\/L) is perfectly suited for these applications where phosphate levels should be minimal.\u003c\/p\u003e\u003ch3\u003eHow to Use:\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003eFill cuvette with 10 mL water sample to line\u003c\/li\u003e\n\u003cli\u003eAdd HI713 reagent packet and mix thoroughly\u003c\/li\u003e\n\u003cli\u003eWait for color development (2 minutes)\u003c\/li\u003e\n\u003cli\u003eInsert cuvette into HI713 Checker HC\u003c\/li\u003e\n\u003cli\u003ePress button to read phosphate concentration in mg\/L\u003c\/li\u003e\n\u003cli\u003eConvert to ppb if desired: ppb = mg\/L × 1000\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eReagent Availability:\u003c\/h3\u003e\u003cp\u003eReplacement reagents available separately as HI713-25 (25 tests) and HI713-100 (100 tests). Each reagent packet is pre-measured for consistent, accurate results.\u003c\/p\u003e\u003ch3\u003eMaintenance \u0026amp; Care:\u003c\/h3\u003e\u003cp\u003eClean cuvettes with distilled water after each use. Store in protective case when not in use. Replace battery when low battery indicator appears. Use CAL Check feature periodically to verify meter performance. Keep reagents stored in a cool, dry place.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eNote: Reagents sold separately after initial supply is used. For best results, use fresh reagents and follow all testing procedures carefully. Regular CAL Check validation recommended for quality assurance.\u003c\/em\u003e\u003c\/p\u003e","brand":"HANNA Instruments","offers":[{"title":"Default Title","offer_id":41918545330263,"sku":"HI713","price":74.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/files\/HI713-CheckerHC-Front-1275x1275__53140.jpg?v=1773865002"},{"product_id":"hanna-hi97105-11-cal-check-calibration-standards-marine-photometer","title":"Hanna HI97105-11 CAL Check Calibration Standards - Marine Photometer Cuvette Kit","description":"\u003cp\u003e\u003cspan\u003eThe HI97105-11 CAL Check\u003c\/span\u003e\u003csup\u003e™\u003c\/sup\u003e\u003cspan\u003e standards provides a simple solution to calibrating and validating the HI97105 and HI97115 Marine Master Photometers.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HANNA Instruments","offers":[{"title":"Default Title","offer_id":41918726111319,"sku":"HI97105-11","price":219.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/files\/HI97105-11__70236.jpg?v=1755049504"},{"product_id":"hanna-hi781-marine-nitrate-low-range-colorimeter-reef-aquarium","title":"Hanna Instruments HI781 Marine Nitrate Low Range Colorimeter for Reef \u0026 Saltwater Aquariums","description":"\u003ch2\u003eHanna Instruments HI781 Marine Nitrate Low Range Colorimeter\u003c\/h2\u003e\u003cp\u003eProtect your reef and saltwater aquarium with pinpoint nitrate accuracy. The \u003cstrong\u003eHanna Instruments HI781 Checker® HC\u003c\/strong\u003e is a handheld colorimeter engineered to measure low-range nitrate levels from \u003cstrong\u003e0.00 to 5.00 ppm (as NO3–)\u003c\/strong\u003e — far more reliably than color-matching test kits. No more squinting at color charts; get a clear digital readout every time.\u003c\/p\u003e\u003ch3\u003eWhy Nitrate Control Matters in Reef Aquariums\u003c\/h3\u003e\u003cp\u003eNitrate is a natural by-product of the nitrogen cycle. Too much promotes algae blooms and dinoflagellate outbreaks; too little starves SPS corals, causing color loss and tissue recession. The HI781 gives you the precise data you need to keep your reef thriving.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasurement range:\u003c\/strong\u003e 0.00–5.00 ppm NO3– (extend to 0–50 ppm with the approved dilution procedure).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDigital readout\u003c\/strong\u003e — eliminates visual color-matching errors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in timer\u003c\/strong\u003e — guides you through each step so you never miss a reaction window.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSaltwater-optimized\u003c\/strong\u003e — calibrated specifically for marine and reef aquarium water chemistry.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMore accurate than test kits\u003c\/strong\u003e — uses the Beer-Lambert colorimetric principle for lab-grade results.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle-parameter dedicated\u003c\/strong\u003e — no cross-interference from other parameters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; portable\u003c\/strong\u003e — handheld design fits easily in your aquarium toolkit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdeal for:\u003c\/strong\u003e reef aquariums, marine biology, and professional saltwater applications.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eHow It Works\u003c\/h3\u003e\u003cp\u003eAdd the pre-measured HI781-25 reagent packet to your water sample. The HI781 uses the Beer-Lambert principle to detect the pink\/violet color change caused by the nitrate-reagent reaction and converts it to a precise ppm reading — in minutes.\u003c\/p\u003e\u003ch3\u003eIn the Box\u003c\/h3\u003e\u003cp\u003eHI781 Checker® HC colorimeter, sample cuvettes, HI781-25 reagent sachets (starter supply), instructions. Replacement reagents sold separately as \u003cstrong\u003eHI781-25 (25 tests)\u003c\/strong\u003e.\u003c\/p\u003e","brand":"HANNA Instruments","offers":[{"title":"Default Title","offer_id":41991258538071,"sku":"HI781","price":74.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/files\/HI781-Front__67689.jpg?v=1758677062"},{"product_id":"hanna-hi8424-portable-ph-mv-meter-waterproof-kit","title":"Hanna HI8424 Portable pH\/mV Meter - Waterproof with Electrode \u0026 Temp Probe Kit","description":"\u003cdiv class=\"productView rca-product-view\" data-event-type=\"product\" data-entity-id=\"4434\" data-name=\"Portable pH\/mV Meter\" data-product-category=\"Hanna best sellers, \n            Industry\/Industrial, \n            Industry\/Industrial\/Chemical manufacturing, \n            Industry\/Industrial\/Water treatment, \n            Industry\/Water, \n            Industry\/Water\/Aquaculture, \n            Industry\/Water\/Wastewater, \n            Industry\/Water\/Drinking water, \n            Industry\/Industrial\/Plating, \n            Industry\/Laboratory\/Research, \n            Industry\/Food, \n            Industry\/Food\/Meat, \n            Industry\/Food\/Dairy, \n            Industry\/Food\/Processed foods, \n            Industry\/Beverage, \n            Industry\/Beverage\/Wine, \n            Industry\/Laboratory\/Education, \n            Industry\/Water\/Environmental, \n            Industry\/Industrial\/Petrochemical, \n            Industry\/Beverage\/Beer, \n            Parameters\/P - Z\/pH, \n            Parameters\/G - O\/ORP, \n            Product\/Meters, \n            Product\/Meters\/Portable meters, \n            Parameters\/G - O\/ISE, \n            Industry\/Beverage\/Other, \n            Industry\/Food\/Other, \n            Industry\/Industrial\/Other, \n            Industry\/Laboratory\/Other, \n            Industry\/Water\/Other\" data-product-brand=\"\" data-product-price=\"429.99\" data-product-variant=\"single-product-option\"\u003e\n\u003csection class=\"productView-details product-options\"\u003e\n\u003cdiv class=\"productView-shortDescription\"\u003e\n\u003cp\u003eThe HI8424 is a compact, waterproof, portable pH\/mV\/temperature meter that is supplied complete with a protective carrying case, PEI plastic body pH electrode, stainless steel temperature probe, calibration buffer sachets, and cleaning solution sachets. The meter features automatic calibration at one or two points as well as Automatic Temperature Compensation (ATC) when the temperature probe is connected.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCompact waterproof design\u003c\/li\u003e\n\u003cli\u003eAutomatic Temperature Compensation (ATC)\u003c\/li\u003e\n\u003cli\u003eAutomatic one or two-point calibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003cdiv data-content-region=\"product-before-description\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"productView-description\" data-event-type=\"product\"\u003e\n\u003csection class=\"banner--product-rich-text\"\u003e\n\u003cdiv class=\"grid-container\"\u003e\n\u003cdiv class=\"align-center\"\u003e\n\u003cdiv class=\"cell small-12 large-10\"\u003e\n\u003cdiv id=\"hs_cos_wrapper_widget_12054512376_\" class=\"hs_cos_wrapper hs_cos_wrapper_widget hs_cos_wrapper_type_inline_rich_text\" data-hs-cos-general-type=\"widget\" data-hs-cos-type=\"inline_rich_text\" data-hs-cos-field=\"content\"\u003e\n\u003cp\u003eThe HI8424 is an economical portable pH\/ mV meter. This meter uses a BNC connector for the pH electrode input allowing for a wide selection of pH and ORP electrodes to be used. A separate temperature probe is supplied to provide temperature compensated pH measurement. The HI8424 is very basic in operation with automatic calibration to one or two points to any of the three programmed buffer values (pH 4.01, 7.01, and 10.01). The simplicity in operation and the economical price point has made the HI8424 one of the most popular meters available in the market.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eFeatures at-a-glance\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eWaterproof\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e- Compact, heavy duty casing that is protected against any ingress of water that would damage the electronics.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAutomatic Calibration\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e- calibration to one or two points to any of the three programmed buffer values (pH 4.01, 7.01, and 10.01).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAutomatic Temperature Compensation\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e- Separate temperature probe is supplied to provide temperature compensated measurements.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHigh Resolution\/Accuracy mV Range\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e- The HI8424 automatically switches resolution from 1 mV to 0.1 mV when ORP readings are between -699.9 to +699.9 mV. The accuracy within this range is ±0.2 mV.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAutomatic Shutoff\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e- The automatic shutoff feature will turn the meter off after 20 minutes to conserve battery life.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLow Battery Indicator\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e- A low battery indicator will be displayed when the battery life is almost exhausted (5% remaining) alerting the user that a new battery will be needed in the near future.\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRange\u003c\/td\u003e\n\u003ctd\u003emV\u003c\/td\u003e\n\u003ctd\u003e±699.9 mV; ±1999 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRange\u003c\/td\u003e\n\u003ctd\u003eTemperature\u003c\/td\u003e\n\u003ctd\u003e-20.0 to 120.0°C \/ -4.0 to 248.0°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003epH\u003c\/td\u003e\n\u003ctd\u003e0.01 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003emV\u003c\/td\u003e\n\u003ctd\u003e0.1 mV; 1 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003eTemperature\u003c\/td\u003e\n\u003ctd\u003e0.1°C \/ 0.1°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003epH\u003c\/td\u003e\n\u003ctd\u003e±0.01 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003emV\u003c\/td\u003e\n\u003ctd\u003e±0.2 mV; ±1 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003eTemperature\u003c\/td\u003e\n\u003ctd\u003e±0.4°C \/ ±0.8°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Calibration\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eautomatic, 1 or 2 point with 3 memorized buffer values (4.01, 7.01, 10.01)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Calibration\u003c\/td\u003e\n\u003ctd\u003eOffset Calibration\u003c\/td\u003e\n\u003ctd\u003e±1 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Calibration\u003c\/td\u003e\n\u003ctd\u003eSlope Calibration\u003c\/td\u003e\n\u003ctd\u003e75 to 110%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Impedance\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e10\u003csup\u003e12\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eOhm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Compensation\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eAutomatic, -20 to 120°C (-4 to 248°F) or manual without temperature probe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Electrode\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eHI 1230B, double junction, gel filled\u003cbr\u003ePEI (PolyEther-Imide) body, BNC connector, 1 m (3.3') cable (included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Probe\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eHI 7662 with 1 m (3.3') cable (included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Type \/ Life\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e1 x 9V \/ approx. 150 hours of continuous use;\u003cbr\u003eauto-off after 20 minutes of non-use or disabled (user-selectable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnvironment\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e0 to 50°C (32 to 122°F); RH max 100%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e164 x 76 x 45 mm (6.5 x 3.0 x 1.8\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e180 g (6.3 oz.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"HANNA Instruments","offers":[{"title":"Default Title","offer_id":42002302304343,"sku":"HI8424","price":489.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/files\/portable-ph-mv-meter-front-view-hi8424__91413.jpg?v=1759268622"},{"product_id":"hanna-instruments-marine-alkalinity-checker-hc-reagents-for-hi772-25-tests","title":"Hanna Instruments Marine Alkalinity Checker HC Reagents for HI772 (25 Tests)","description":"\u003cp\u003eThe HI772-26 are the replacement reagents Marine Alkalinity (dKH) Checker® HC - HI772. These high-quality reagents are manufactured in our state-of-the-art facility and are clearly marked with the lot number and expiration date on each packet for traceability.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePre-made reagents for ease of use\u003c\/li\u003e\n\u003cli\u003ePrepared with high purity chemicals\u003c\/li\u003e\n\u003cli\u003eMarked with expiration date and lot number for traceability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThe HI772-26 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Marine Alkalinity Checker® HC. These reagents follow the Colorimetric Method in which the reaction causes a distinctive range of colors from yellow to green to blue to develop. By simply adding the solution of HI772-26 to the sample, the reaction will take place and the Marine Alkalinity Checkers will determine the concentration from the color that is produced. The results will be displayed in dKH for the HI772 Checker. These reagents are designed to be used with samples that have an expected range of 0.0 to 20.0 dKH.\u003c\/span\u003e\u003c\/p\u003e","brand":"HANNA Instruments","offers":[{"title":"Default Title","offer_id":42033046519895,"sku":"HI772-26","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/files\/alkalinity-reagent-hi755-26-kit__85175.jpg?v=1760548581"},{"product_id":"hanna-instruments-marine-phosphate-ultra-low-range-colorimeter-checker-hc-hi774","title":"Hanna Instruments Marine Phosphate Ultra Low Range Colorimeter - Checker HC - HI774","description":"\u003cp\u003eThe HI774 Ultra Low Range Phosphate Checker® HC (Handheld Colorimeter) is a cost-effective way to measure phosphate in marine systems, including reef tanks. Testing for phosphates is standard practice for saltwater aquariums and provides valuable insight into your reef tank's water chemistry to help ensure long-term coral health. Phosphates are one of the many forms of phosphorus compounds found in marine waters. Excessive phosphate levels can prevent calcification, skeletal formation, and growth of many coral species, particularly those referred to as SPS or small-polyp stony. In addition, high phosphate levels can cause nuisance algae growth in your reef tank. This can become problematic because algae often outcompetes sessile organisms for light, nutrients, and space, jeopardizing long term coral health in your reef.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTake our portable handheld colorimeter anywhere.\u003c\/li\u003e\n\u003cli\u003eSimple, one-button design makes getting your results easy.\u003c\/li\u003e\n\u003cli\u003eImprove your technology and upgrade from your standard test kit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe HI774 Checker\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eHC (Handheld Colorimeter) provides a simple, accurate and cost effective way to measure phosphate from 0.00 to 0.90 ppm. Phosphorus is an important parameter to measure in aquaculture and aquariums; levels that are too high can lead to extensive algae growth, depleted dissolved oxygen levels, and ultimately can be fatal to many types of fish and aquatic life. Designed as a more accurate alternative to chemical test kits, the HI774 provides quick, accurate results in a few easy steps.\u003c\/p\u003e\n\u003ch4\u003eFeatures at-a-glance:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eEasier to use and more accurate than chemical test kits\u003c\/li\u003e\n\u003cli\u003eDedicated to a single parameter\u003c\/li\u003e\n\u003cli\u003eSmall size, big convenience\u003c\/li\u003e\n\u003cli\u003eIdeal for: Aquariums, Environmental, Aquaculture, Water Quality\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI774\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRange\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.00 to 0.90 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.01 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAccuracy @ 25°C (77°F)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±0.02 ppm ±5% of reading\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLight Source\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLED @ 525 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLight Detector\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003esilicon photocell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMethod\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eadaptation of the Standard Methods for the Examination of Water and Wastewater, 20th edition, Ascorbic-Acid method\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e(1) 1.5V AAA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAuto shut-off\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eafter 7 minutes of non-use and 2 minutes after reading\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnvironment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 to 50°C (32 to 122°F) RH max 95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e86.0 x 61.0 x 37.5 mm (3.4 x 2.4 x 1.5in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e64 g (2.3 oz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrdering Information\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI774 Checker®HC is supplied with (2) sample cuvettes with caps, phosphate ULR reagent starter kit for 10 tests, batteries, instructions, and quick start guide.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReagent Set\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI774-25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCalibration Check\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI774-11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"HANNA Instruments","offers":[{"title":"Default Title","offer_id":42059298242647,"sku":"HI774","price":74.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/files\/HI774_Front-1200x1200__99630.jpg?v=1761601088"},{"product_id":"hanna-hi758-26-marine-calcium-checker-reagents-25-tests-hi758-reef-aquarium","title":"Hanna HI758-26 Marine Calcium Checker Reagents | 25 Tests for HI758 | Reef Aquarium Testing","description":"\u003cp\u003eThe HI758-26 are the replacement reagents for the HI758 Marine Calcium Checker® HC. 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The \u003cstrong\u003eHanna HI780-25\u003c\/strong\u003e replacement reagents are engineered specifically for the \u003cstrong\u003eHI780 Marine pH Checker® HC\u003c\/strong\u003e, delivering fast, accurate pH readings in saltwater and reef aquarium environments — every single time.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Choose HI780-25 Reagents?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-measured for accuracy\u003c\/strong\u003e — no guesswork, no dilution errors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhenol Red colorimetric method\u003c\/strong\u003e — color shifts from yellow to red based on pH, read instantly by the HI780 photometer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100 tests per bottle\u003c\/strong\u003e — long-lasting supply for regular reef monitoring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-purity chemicals\u003c\/strong\u003e — manufactured in a state-of-the-art Hanna facility\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLot number \u0026amp; expiration date on every packet\u003c\/strong\u003e — full traceability and quality assurance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResolution of 0.1 pH\u003c\/strong\u003e — precise enough for sensitive marine and reef systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow It Works\u003c\/h3\u003e\n\u003cp\u003eAdd just 5 drops of HI780-25 reagent to your water sample. The Phenol Red reaction produces a color shift — from yellow to red — that your HI780 Checker HC reads photometrically and converts into a precise pH value displayed in pH units.\u003c\/p\u003e\n\n\u003ch3\u003eCompatible With\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHanna HI780 Marine pH Checker® HC\u003c\/li\u003e\n\u003cli\u003eSaltwater aquariums, reef tanks, and marine research applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e HI780-25\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTests per bottle:\u003c\/strong\u003e 100\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMethod:\u003c\/strong\u003e Phenol Red colorimetric\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResolution:\u003c\/strong\u003e 0.1 pH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible instrument:\u003c\/strong\u003e HI780 Marine pH Checker® HC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Romania\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVendor:\u003c\/strong\u003e Hanna Instruments\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HANNA Instruments","offers":[{"title":"Default Title","offer_id":42060211126359,"sku":"HI780-25","price":36.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/files\/HI780-25_ph_reagent__74180.jpg?v=1761668772"},{"product_id":"hanna-hi781-25-marine-nitrate-reagents-25-tests","title":"Hanna Instruments HI781-25 Marine Nitrate Reagents for Saltwater Aquariums (25 Tests)","description":"\u003ch2\u003eHanna Instruments HI781-25 Marine Nitrate Checker Reagents (25 Tests)\u003c\/h2\u003e\u003cp\u003eKeep your reef and saltwater aquarium thriving with \u003cstrong\u003eHanna Instruments HI781-25 replacement reagents\u003c\/strong\u003e — precision-formulated for use exclusively with the \u003cstrong\u003eHI781 Marine Nitrate Low Range Colorimeter\u003c\/strong\u003e. Each packet is pre-measured for fast, accurate nitrate testing with zero guesswork.\u003c\/p\u003e\u003ch3\u003eWhy Choose HI781-25 Reagents?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-measured packets\u003c\/strong\u003e — no mixing, no mess, consistent results every time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-purity chemicals\u003c\/strong\u003e — manufactured in Hanna's state-of-the-art facility for lab-grade accuracy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull traceability\u003c\/strong\u003e — every packet is clearly marked with lot number and expiration date.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColorimetric method\u003c\/strong\u003e — nitrate reacts with reagent to produce a pink\/violet tint, measured precisely by the HI781 checker.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesigned for seawater\u003c\/strong\u003e — optimized for marine and reef aquarium water chemistry.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cp\u003e25 pre-measured reagent packets compatible with the HI781 Marine Nitrate Low Range Colorimeter. Ideal for regular water quality maintenance in saltwater and reef aquariums.\u003c\/p\u003e\u003ch3\u003eCompatible With\u003c\/h3\u003e\u003cp\u003eHanna Instruments HI781 Marine Nitrate Low Range Colorimeter (sold separately).\u003c\/p\u003e","brand":"HANNA Instruments","offers":[{"title":"Default Title","offer_id":42060244779095,"sku":"HI781-25","price":38.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/files\/HI781-25_holder__49657.jpg?v=1761671577"},{"product_id":"hanna-instruments-marine-magnesium-checker-reagents-25-tests-hi783-25","title":"Hanna Instruments Marine Magnesium Checker Reagents (25 Tests) - HI783-25","description":"\u003cp\u003eThe HI783-25 are the replacement reagents for the Marine Magnesium Checker\u003cspan\u003e®\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eHC - HI783. These high-quality reagents are manufactured in our state-of-the-art facility and are clearly marked with the lot number and expiration date on each packet for traceability.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePre-made reagents for ease of use\u003c\/li\u003e\n\u003cli\u003ePrepared with high purity chemicals\u003c\/li\u003e\n\u003cli\u003eMarked with expiration date and lot number for traceability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HANNA Instruments","offers":[{"title":"Default Title","offer_id":42060266373207,"sku":"HI783-25","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/files\/HI783-25_720x720__93332.jpg?v=1761673903"},{"product_id":"hanna-marine-alkalinity-checker-hc-reagents-for-hi755-25-tests-hi755-26","title":"Hanna Marine Alkalinity Checker HC Reagents for HI755 (25 Tests)-HI755-26","description":"\u003cp\u003eThe HI755-26 are the replacement reagents for the Marine Alkalinity Checker® HC - HI755. These high-quality reagents are manufactured in our state-of-the-art facility and are clearly marked with the lot number and expiration date on each packet for traceability.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePre-made reagents for ease of use\u003c\/li\u003e\n\u003cli\u003ePrepared with high purity chemicals\u003c\/li\u003e\n\u003cli\u003eMarked with expiration date and lot number for traceability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThe HI755-26 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Marine Alkalinity Checker® HC. These reagents follow the Colorimetric Method in which the reaction causes a distinctive range of colors from yellow to green to blue to develop. By simply adding the solution of HI755-26 to the sample, the reaction will take place and the Marine Alkalinity Checkers will determine the concentration from the color that is produced. The results will be displayed in ppm of CaCO3 . These reagents are designed to be used with samples that have an expected range of 0 to 300 ppm CaCO3 .\u003c\/span\u003e\u003c\/p\u003e","brand":"HANNA Instruments","offers":[{"title":"Default Title","offer_id":42080009453655,"sku":"HI755-26","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/files\/alkalinity-reagent-marine-hi755-26__78723.jpg?v=1762284836"},{"product_id":"hi758-11","title":"Hanna Marine Calcium Checker HC Calibration Check Set - HI758-11","description":"\u003cp\u003eThe Marine Calcium Checker® HC Calibration Check Set - HI758-11  provides a simple solution to validating the Marine Calcium Checker® HC - HI758 that has a range of 200 to 600 ppm calcium. This high-quality set of standards is manufactured in our state-of-the-art facility and comes supplied with a Certificate of Analysis. The Certificate of Analysis provides the lot number, reference values and expiration date for traceability when certifying the Checker®HC.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSupplied with Certificate of Analysis\u003c\/li\u003e\n\u003cli\u003eStandard value of 400 +\/- 20 ppm calcium @ 25°C\u003c\/li\u003e\n\u003cli\u003eReusable with long shelf life stability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eHI758-11 is a high-quality set of calibration standards that allows users to validate the Marine Calcium Checker® HC - HI758. The HI758-11 includes one sealed cuvette for zero ppm calcium and one cuvette that is tinted to an equivalent 400 +\/- 20 ppm calcium sample @ 25°C. The calibration check set is produced in our state-of-the-art manufacturing facility using reagent grade chemicals in a temperature controlled environment.\u003c\/p\u003e\n\u003ch4\u003eThe HI758-11 is supplied with Certificate of Analysis\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProduct code\u003c\/li\u003e\n\u003cli\u003eLot number\u003c\/li\u003e\n\u003cli\u003eExpiration date\u003cbr\u003e\u003cimg sizes=\"(max-width: 600px) 100vw, 600px\" srcset=\"https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/Checker1_2_3.jpg?width=300\u0026amp;name=Checker1_2_3.jpg 300w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/Checker1_2_3.jpg?width=600\u0026amp;name=Checker1_2_3.jpg 600w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/Checker1_2_3.jpg?width=900\u0026amp;name=Checker1_2_3.jpg 900w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/Checker1_2_3.jpg?width=1200\u0026amp;name=Checker1_2_3.jpg 1200w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/Checker1_2_3.jpg?width=1500\u0026amp;name=Checker1_2_3.jpg 1500w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/Checker1_2_3.jpg?width=1800\u0026amp;name=Checker1_2_3.jpg 1800w\" width=\"600\" alt=\"Checker accuracy\" src=\"https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/Checker1_2_3.jpg?width=600\u0026amp;name=Checker1_2_3.jpg\"\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HANNA Instruments","offers":[{"title":"Default Title","offer_id":42163413516375,"sku":"HI758-11","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/files\/marine-calcium-calibration-set-hi758-11__21272_dfc857d7-5002-4cd3-9a14-c9de05d3d746.jpg?v=1764193827"},{"product_id":"hanna-marine-magnesium-checker-hc-certified-standard-kit-hi783-11","title":"Hanna Marine Magnesium Checker HC Certified Standard Kit - HI783-11","description":"\u003cp\u003eThe Marine Magnesium Checker® HC Calibration Check Set - HI783-11 provides a simple solution to validating the Marine Magnesium Checker® HC - HI783 that has a range of 1,000 to 1,800 ppm Magnesium. This high-quality set of standards is manufactured in our state-of-the-art facility and comes supplied with a Certificate of Analysis. The Certificate of Analysis provides the lot number, reference values and expiration date for traceability when certifying the Checker\u003cspan\u003e® \u003c\/span\u003eHC.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSupplied with Certificate of Analysis\u003c\/li\u003e\n\u003cli\u003eReusable with long shelf life stability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eHI783-11 is a high-quality set of calibration standards that allows users to validate the Marine Magnesium Checker® HC - HI783. The calibration check set is produced in our state-of-the-art manufacturing facility using reagent grade chemicals in a temperature controlled environment.\u003c\/p\u003e\n\u003ch4\u003eThe HI783-11 is supplied with a Certificate of Analysis\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProduct code\u003c\/li\u003e\n\u003cli\u003eLot number\u003c\/li\u003e\n\u003cli\u003eExpiration date\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HANNA Instruments","offers":[{"title":"Default Title","offer_id":42163420430423,"sku":"HI783-11","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/files\/HI783-11__81648.jpg?v=1764193945"},{"product_id":"hanna-galvanic-dissolved-oxygen-electrolyte-solution-30-ml-hi7042s-1","title":"Hanna Marine Monitor pH\/Salinity\/Temperature - HI981520-01","description":"\u003cp\u003ePerfect for saltwater applications. This vertical mount unit can be used to continuously monitor at-home saltwater aquariums and reef tanks, public aquariums, saltwater mixing stations, and marine aquaculture facilities.\u003c\/p\u003e\n\u003cp\u003eKeep your saltwater in check with our Marine Monitor (HI981520):\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eQuick at-a-glance readings for pH, salinity, and temperature\u003c\/li\u003e\n\u003cli\u003eEasy-to-use and maintain with simple navigation\u003c\/li\u003e\n\u003cli\u003eBuilt-in alarms alert you when parameters are out of range\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003csection class=\"banner--product-col2-details grid-container\"\u003e\n\u003cdiv class=\"col2-detail-group grid-x grid-padding-x grid-padding-y align-right\"\u003e\n\u003cdiv class=\"cell small-12  border-after--blue-wide\"\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/product\/HI981520\/HI981520_single-720x720.jpg?width=720\u0026amp;height=720\u0026amp;name=HI981520_single-720x720.jpg\" alt=\"Marine Monitor pH\/Salinity\/Temperature\" width=\"720\" height=\"720\" srcset=\"https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/product\/HI981520\/HI981520_single-720x720.jpg?width=360\u0026amp;height=360\u0026amp;name=HI981520_single-720x720.jpg 360w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/product\/HI981520\/HI981520_single-720x720.jpg?width=720\u0026amp;height=720\u0026amp;name=HI981520_single-720x720.jpg 720w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/product\/HI981520\/HI981520_single-720x720.jpg?width=1080\u0026amp;height=1080\u0026amp;name=HI981520_single-720x720.jpg 1080w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/product\/HI981520\/HI981520_single-720x720.jpg?width=1440\u0026amp;height=1440\u0026amp;name=HI981520_single-720x720.jpg 1440w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/product\/HI981520\/HI981520_single-720x720.jpg?width=1800\u0026amp;height=1800\u0026amp;name=HI981520_single-720x720.jpg 1800w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/product\/HI981520\/HI981520_single-720x720.jpg?width=2160\u0026amp;height=2160\u0026amp;name=HI981520_single-720x720.jpg 2160w\" sizes=\"(max-width: 720px) 100vw, 720px\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv data-details=\"\" class=\"cell small-12 large-auto\"\u003e\n\u003cdiv data-detail-item=\"\" class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003eConvenient and User-Friendly\u003c\/h4\u003e\n\u003cp\u003eEquipped with a simple user interface. Results are displayed on a large, easy to read LCD screen. Users can choose their desired units for salinity (ppt, PSU, Specific Gravity (S.G.) and temperature (C° or F°).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-detail-item=\"\" class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003eVertical Mount Unit\u003c\/h4\u003e\n\u003cp\u003eMonitor can be affixed to the aquarium tank wall.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-detail-item=\"\" class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003eSuction Cup with Clips\u003c\/h4\u003e\n\u003cp\u003eThe probes can be installed\/immersed directly in an aquarium tank (with supplied suction cups) and are designed to continuously monitor pH, salinity, and temperature levels.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col2-detail-group grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12  border-after--blue-wide\"\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto small-order-1 large-order-2\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/product\/HI981520\/HI981520_Alarm_720x720.jpg?width=720\u0026amp;height=720\u0026amp;name=HI981520_Alarm_720x720.jpg\" alt=\"HI981520_Alarm_720x720\" width=\"720\" height=\"720\" loading=\"lazy\" srcset=\"https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/product\/HI981520\/HI981520_Alarm_720x720.jpg?width=360\u0026amp;height=360\u0026amp;name=HI981520_Alarm_720x720.jpg 360w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/product\/HI981520\/HI981520_Alarm_720x720.jpg?width=720\u0026amp;height=720\u0026amp;name=HI981520_Alarm_720x720.jpg 720w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/product\/HI981520\/HI981520_Alarm_720x720.jpg?width=1080\u0026amp;height=1080\u0026amp;name=HI981520_Alarm_720x720.jpg 1080w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/product\/HI981520\/HI981520_Alarm_720x720.jpg?width=1440\u0026amp;height=1440\u0026amp;name=HI981520_Alarm_720x720.jpg 1440w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/product\/HI981520\/HI981520_Alarm_720x720.jpg?width=1800\u0026amp;height=1800\u0026amp;name=HI981520_Alarm_720x720.jpg 1800w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/product\/HI981520\/HI981520_Alarm_720x720.jpg?width=2160\u0026amp;height=2160\u0026amp;name=HI981520_Alarm_720x720.jpg 2160w\" sizes=\"(max-width: 720px) 100vw, 720px\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-details=\"\" class=\"cell small-12 large-auto small-order-2 large-order-1\"\u003e\n\u003cdiv data-detail-item=\"\" class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003eTwo Alarm Operating Modes\u003c\/h4\u003e\n\u003cp\u003eA high\/low value can be configured for each parameter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-detail-item=\"\" class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003eHigh\/Low Alarm\u003c\/h4\u003e\n\u003cp\u003eUsers can be alerted when a measured reading exceeds or drops below the set high\/low value.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-detail-item=\"\" class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003eVisual and Audible Notifications\u003c\/h4\u003e\n\u003cp\u003eDisplays warning messages and a sound signal is generated when an alarm is triggered. This notifies you when readings are outside of supported ranges.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col2-detail-group grid-x grid-padding-x grid-padding-y align-right\"\u003e\n\u003cdiv class=\"cell small-12  border-after--blue-wide\"\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/product\/HI981520\/HI981520-probes_720x720.jpg?width=720\u0026amp;height=720\u0026amp;name=HI981520-probes_720x720.jpg\" alt=\"HI981520-probes_720x720\" width=\"720\" height=\"720\" srcset=\"https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/product\/HI981520\/HI981520-probes_720x720.jpg?width=360\u0026amp;height=360\u0026amp;name=HI981520-probes_720x720.jpg 360w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/product\/HI981520\/HI981520-probes_720x720.jpg?width=720\u0026amp;height=720\u0026amp;name=HI981520-probes_720x720.jpg 720w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/product\/HI981520\/HI981520-probes_720x720.jpg?width=1080\u0026amp;height=1080\u0026amp;name=HI981520-probes_720x720.jpg 1080w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/product\/HI981520\/HI981520-probes_720x720.jpg?width=1440\u0026amp;height=1440\u0026amp;name=HI981520-probes_720x720.jpg 1440w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/product\/HI981520\/HI981520-probes_720x720.jpg?width=1800\u0026amp;height=1800\u0026amp;name=HI981520-probes_720x720.jpg 1800w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/product\/HI981520\/HI981520-probes_720x720.jpg?width=2160\u0026amp;height=2160\u0026amp;name=HI981520-probes_720x720.jpg 2160w\" sizes=\"(max-width: 720px) 100vw, 720px\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv data-details=\"\" class=\"cell small-12 large-auto\"\u003e\n\u003cdiv data-detail-item=\"\" class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003epH Electrode (HI1286)\u003c\/h4\u003e\n\u003cp\u003eSupplied with a pH double junction electrode with a PEI resin body. This makes the pH electrode resistant to many aggressive chemicals. It is also easy to clean and less susceptible to clogging for fast and stable pH readings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-detail-item=\"\" class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003eFixed EC \u0026amp; Temperature Probe\u003c\/h4\u003e\n\u003cp\u003eAttached to the monitor, this two-electrode conductivity probe features a built-in temperature sensor at the tip of the EC sensor. This allows for rapid and accurate salinity and temperature readings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-detail-item=\"\" class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003eExtended Cable Length\u003c\/h4\u003e\n\u003cp\u003eEach probe features a 2 m (6.6') cable length for extended distances between the monitor and the saltwater sample.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col2-detail-group grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12\"\u003e\n\u003cdiv class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto small-order-1 large-order-2\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/HI981520-Mouning-Glass-1.jpg?width=400\u0026amp;height=400\u0026amp;name=HI981520-Mouning-Glass-1.jpg\" alt=\"HI981520-Mouning-Glass-1\" width=\"400\" height=\"400\" srcset=\"https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/HI981520-Mouning-Glass-1.jpg?width=200\u0026amp;height=200\u0026amp;name=HI981520-Mouning-Glass-1.jpg 200w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/HI981520-Mouning-Glass-1.jpg?width=400\u0026amp;height=400\u0026amp;name=HI981520-Mouning-Glass-1.jpg 400w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/HI981520-Mouning-Glass-1.jpg?width=600\u0026amp;height=600\u0026amp;name=HI981520-Mouning-Glass-1.jpg 600w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/HI981520-Mouning-Glass-1.jpg?width=800\u0026amp;height=800\u0026amp;name=HI981520-Mouning-Glass-1.jpg 800w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/HI981520-Mouning-Glass-1.jpg?width=1000\u0026amp;height=1000\u0026amp;name=HI981520-Mouning-Glass-1.jpg 1000w, https:\/\/cdn2.hubspot.net\/hubfs\/2134380\/001-website\/images\/HI981520-Mouning-Glass-1.jpg?width=1200\u0026amp;height=1200\u0026amp;name=HI981520-Mouning-Glass-1.jpg 1200w\" sizes=\"(max-width: 400px) 100vw, 400px\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv data-details=\"\" class=\"cell small-12 large-auto small-order-2 large-order-1\"\u003e\n\u003cdiv data-detail-item=\"\" class=\"grid-x grid-padding-x grid-padding-y\"\u003e\n\u003cdiv class=\"cell small-12 large-auto\"\u003e\n\u003ch4\u003eSuction Cup Attachment \u0026amp; Mounting Features\u003c\/h4\u003e\n\u003cp\u003eEasily attaches to aquarium's exterior to enable regular monitoring. The probes are secured with suction cups to the back of an aquarium (tank) and are suited for continuous measurement of conductivity and associated parameters required in applications such as seawater, saltwater aquariums, or aquaculture. A monitor mount component contains pre-cut strips, featuring a strong adhesive that adheres to most smooth surfaces (e.g., glass, metal, tile).\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI981520-01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003epH Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.0 to 14.0 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003epH Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003epH Accuracy (@25°C\/77°F)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±0.2 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.0 to 50.0 °C (32.0 to 122.0 °F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1 °C \/ 0.1 °F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Accuracy (@25°C\/77°F)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±0.5 °C \/ ±1.0 °F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCalibration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003epH Calibration: Manual or automatic two-point calibration in 7.01 and 10.01 pH ppt Calibration: Automatic, single point in 35.00 ppt Temperature Calibration: Automatic, 5 to 50 °C (41 to 122 °F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAlarms\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHigh or Low with Enable or Disable option\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Supply\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12 VDC adapter (included) 115-230 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCasing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIP65 ingress protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnvironment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0-50°C (32-122°F) RH max 95%, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e125 x 185 x 38 mm (4.92 x 7.28 x 1.49in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e300 g (10.6 oz.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrdering Information\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI981520 is supplied with HI1286 pH electrode, attached conductivity and temperature probe, pH 7.01 buffer solution, 20 mL sachet (2 pcs.), pH 10.01 buffer solution, 20 mL sachet (2 pcs.), 35.00 ppt salinity calibration solution, 20 mL sachet (2 pcs.), electrode cleaning solution, 20 mL sachet (2 pcs.), suction cup with clip (2 pcs.), self-adhesive fastener (2 pcs.), 12 Vdc power adapter, probe quality certificate, instrument quality certificate, quick reference guide with QR code and URL link for manual download.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRecommended Probe\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eph: HI1286 EC: Attached\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e","brand":"HANNA Instruments","offers":[{"title":"Default Title","offer_id":42456827592791,"sku":"HI981520-01","price":299.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/files\/HI981520_Front-1__55928.jpg?v=1767547651"}],"url":"https:\/\/getultimatenow.com\/collections\/hanna-marine-testing-equipment\/replacement-electrode.oembed","provider":"Get Ultimate Now ","version":"1.0","type":"link"}