{"title":"Milwaukee - Dissolved Oxygen Meter","description":"\u003ch2\u003eMilwaukee Instruments Dissolved Oxygen Meters — Accurate DO Testing for Water Quality\u003c\/h2\u003e\u003cp\u003eMilwaukee Instruments dissolved oxygen (DO) meters deliver precise, reliable measurements of oxygen saturation in water — essential for aquaculture, pond management, environmental monitoring, wastewater treatment, and laboratory applications. Built to international quality standards, Milwaukee DO meters are trusted by professionals who need accurate, repeatable results in the field and lab.\u003c\/p\u003e\u003ch3\u003eWhat Is Dissolved Oxygen (DO)?\u003c\/h3\u003e\u003cp\u003eDissolved Oxygen — also known as Oxygen Saturation — measures the amount of gaseous oxygen present in water. It is a key indicator of water health and its ability to sustain aquatic life. DO levels are critical in natural bodies of water (ponds, lakes, rivers, streams), fish farms, aquariums, stormwater runoff, and wastewater systems.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eNote: High DO levels improve drinking water taste; however, industrial water supplies often require low DO as oxygen promotes pipe corrosion.\u003c\/em\u003e\u003c\/p\u003e\u003ch3\u003eWhy DO Levels Matter\u003c\/h3\u003e\u003cp\u003eOxygen enters water through atmospheric diffusion, plant photosynthesis, and surface agitation. It is consumed by aquatic animal respiration, organic matter decomposition, and chemical reactions. In a healthy ecosystem, oxygen production and consumption remain balanced — but significant imbalance can be catastrophic to aquatic life.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDO levels fluctuate daily and seasonally, varying with water depth, temperature, and altitude\u003c\/li\u003e\n\u003cli\u003eLevels below 1–2 mg\/L sustained for several hours can cause fish kills\u003c\/li\u003e\n\u003cli\u003eDO is highest in late afternoon on hot, sunny days; lowest in early morning after overnight oxygen consumption\u003c\/li\u003e\n\u003cli\u003eStill waters (ponds, lakes) are more vulnerable to DO depletion than moving water\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCommon DO Measurement Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAquaculture \u0026amp; Fish Farms:\u003c\/strong\u003e Monitor and maintain oxygen levels to prevent fish kills and optimize growth\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePond \u0026amp; Lake Management:\u003c\/strong\u003e Track DO fluctuations caused by algal blooms, pond turnover, and seasonal changes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWastewater Treatment:\u003c\/strong\u003e Control aeration processes and monitor treatment effectiveness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironmental Monitoring:\u003c\/strong\u003e Assess water body health and ecosystem balance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrinking Water \u0026amp; Industrial Water:\u003c\/strong\u003e Verify DO levels for taste quality or corrosion control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLaboratory \u0026amp; Research:\u003c\/strong\u003e Precise DO measurement for scientific and academic applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eHow Milwaukee DO Meters Work\u003c\/h3\u003e\u003cp\u003eMilwaukee dissolved oxygen meters measure DO in parts per million (mg\/L) or as a percentage of saturation — the maximum oxygen dissolvable at a given altitude and temperature. The probe contains a salt solution behind a selectively permeable membrane; DO diffuses through the membrane, alters the electrical potential of the solution, and the meter displays the result in mg\/L and %.\u003c\/p\u003e\u003ch3\u003eCalibration\u003c\/h3\u003e\u003cp\u003eMilwaukee DO meters feature simple open-air calibration — no calibration solution required. Some models include auto-calibration for added convenience. Most meters also measure temperature in Celsius with automatic compensation for accurate readings across varying conditions.\u003c\/p\u003e\u003cp\u003eShop Milwaukee dissolved oxygen meters at Get Ultimate Now — professional-grade DO testing instruments, competitive pricing, and fast shipping.\u003c\/p\u003e","products":[{"product_id":"milwaukee-mw600-pro-dissolved-oxygen-meter","title":"Milwaukee MW600 PRO Dissolved Oxygen Meter | Portable DO Meter","description":"\u003ch2\u003eMilwaukee MW600 PRO Portable Dissolved Oxygen Meter\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eMilwaukee MW600 PRO\u003c\/strong\u003e delivers lab-grade dissolved oxygen measurement in a rugged, field-ready portable design. Trusted by aquaculture professionals, wastewater engineers, and environmental scientists worldwide, this meter combines \u003cstrong\u003e±1.5% full-scale accuracy\u003c\/strong\u003e, \u003cstrong\u003eautomatic temperature compensation (ATC)\u003c\/strong\u003e, and an \u003cstrong\u003eIP67 waterproof rating\u003c\/strong\u003e — making it the professional's choice for critical DO testing in any environment.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLab-Grade Accuracy:\u003c\/strong\u003e ±1.5% full scale — reliable data for critical decisions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic Temperature Compensation (ATC):\u003c\/strong\u003e Accurate DO readings across varying temperatures\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePolarographic Probe (MA840):\u003c\/strong\u003e 1m cable, durable construction, easy field replacement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Display:\u003c\/strong\u003e Simultaneous dissolved oxygen + temperature readout\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast Stabilization:\u003c\/strong\u003e Quick, consistent readings for efficient field or lab testing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1-Point Air Calibration:\u003c\/strong\u003e Simple, repeatable calibration procedure\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIP67 Waterproof:\u003c\/strong\u003e Built for wet environments and demanding field conditions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuto-Off (8 min):\u003c\/strong\u003e Extends battery life during field use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eAquaculture \u0026amp; Fish Farming:\u003c\/strong\u003e Monitor DO levels to ensure optimal fish health, prevent stress and mortality, and maximize growth rates in ponds, tanks, and recirculating aquaculture systems (RAS).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWastewater Treatment:\u003c\/strong\u003e Track DO in aeration tanks, activated sludge processes, and effluent streams for process control, regulatory compliance, and treatment optimization.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEnvironmental Monitoring:\u003c\/strong\u003e Assess water quality in rivers, lakes, streams, and wetlands for ecological studies, pollution monitoring, and habitat assessment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFood \u0026amp; Beverage Production:\u003c\/strong\u003e Control dissolved oxygen in brewing, winemaking, beverage bottling, and food processing to prevent oxidation and extend shelf life.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHydroponics \u0026amp; Aquaponics:\u003c\/strong\u003e Optimize root zone oxygen for maximum plant growth, nutrient uptake, and system health.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDO Range:\u003c\/strong\u003e 0.0–45.0 ppm (mg\/L) \/ 0–300% saturation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDO Resolution:\u003c\/strong\u003e 0.1 ppm \/ 1% saturation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDO Accuracy:\u003c\/strong\u003e ±1.5% full scale\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e 0–50°C (32–122°F)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Resolution:\u003c\/strong\u003e 0.1°C \/ 0.1°F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Accuracy:\u003c\/strong\u003e ±0.5°C \/ ±0.9°F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProbe Type:\u003c\/strong\u003e MA840 polarographic with integrated temperature sensor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Length:\u003c\/strong\u003e 1 meter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCalibration:\u003c\/strong\u003e 1-point air calibration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuto-Off:\u003c\/strong\u003e 8 minutes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery:\u003c\/strong\u003e 4 × 1.5V AA (included)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterproof Rating:\u003c\/strong\u003e IP67\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 185 × 85 × 45 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2 lbs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e MW600 | \u003cstrong\u003eBarcode:\u003c\/strong\u003e 810666003600 | \u003cstrong\u003eOrigin:\u003c\/strong\u003e Romania\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cp\u003eMW600 PRO meter, MA840 polarographic DO probe with 1m cable, calibration sleeve, electrolyte solution, 2× membrane caps, AA batteries, and instruction manual.\u003c\/p\u003e\n\n\u003ch3\u003eAbout Milwaukee Instruments\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eMilwaukee Instruments\u003c\/strong\u003e is a global leader in analytical instrumentation with over 30 years of innovation in professional water testing equipment. Every MW600 PRO is manufactured in Romania to exacting quality standards — built to perform in the lab and in the field.\u003c\/p\u003e","brand":"MILWAUKEE INSTRUMENTS","offers":[{"title":"Default Title","offer_id":32300722880599,"sku":"MW600","price":328.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/products\/MW600.jpg?v=1737069426"},{"product_id":"milwaukee-mw600-pro-dissolved-oxygen-meter-do-bundle-case","title":"Milwaukee MW600 PRO Dissolved Oxygen Meter - DO Meter with Hard Case Bundle | Lab Accuracy","description":"\u003ch2\u003eProfessional Dissolved Oxygen Meter with Lab-Grade Accuracy\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eMilwaukee MW600 PRO Portable Dissolved Oxygen Meter\u003c\/strong\u003e delivers laboratory-level precision in a rugged, field-ready package. This complete bundle includes a protective hard carrying case, making it the ideal solution for aquaculture, wastewater treatment, environmental monitoring, and food \u0026amp; beverage applications where accurate DO measurement is critical.\u003c\/p\u003e\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLab-Grade Accuracy:\u003c\/strong\u003e ±1.5% full scale precision without the premium laboratory price tag\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast, Reliable Operation:\u003c\/strong\u003e Quick stabilization and consistent readings for efficient testing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic Temperature Compensation (ATC):\u003c\/strong\u003e Built-in sensor ensures accurate DO readings across temperature variations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePolarographic Probe:\u003c\/strong\u003e Durable, replaceable probe technology for long-term reliability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Bundle Package:\u003c\/strong\u003e Includes hard carrying case for safe transport and storage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Display:\u003c\/strong\u003e Shows dissolved oxygen and temperature simultaneously\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUser-Friendly Calibration:\u003c\/strong\u003e Simple air calibration procedure for consistent accuracy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterproof Design:\u003c\/strong\u003e IP67 rated for use in wet environments\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eAquaculture \u0026amp; Fish Farming:\u003c\/strong\u003e Monitor dissolved oxygen levels to ensure optimal fish health, prevent stress and mortality, and maximize growth rates in ponds, tanks, and recirculating systems.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWastewater Treatment:\u003c\/strong\u003e Track DO levels in aeration tanks and effluent streams for process control, regulatory compliance, and treatment optimization.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eEnvironmental Monitoring:\u003c\/strong\u003e Assess water quality in rivers, lakes, and streams for ecological studies, pollution monitoring, and habitat assessment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFood \u0026amp; Beverage:\u003c\/strong\u003e Control dissolved oxygen in brewing, winemaking, and beverage production to prevent oxidation and maintain product quality.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHydroponics:\u003c\/strong\u003e Optimize root zone oxygen levels for maximum plant growth and nutrient uptake in hydroponic and aquaponic systems.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDO Range: 0.0 to 45.0 ppm (mg\/L) \/ 0 to 300% saturation\u003c\/li\u003e\n\u003cli\u003eDO Resolution: 0.1 ppm \/ 1% saturation\u003c\/li\u003e\n\u003cli\u003eDO Accuracy: ±1.5% full scale\u003c\/li\u003e\n\u003cli\u003eTemperature Range: 0 to 50°C (32 to 122°F)\u003c\/li\u003e\n\u003cli\u003eTemperature Resolution: 0.1°C \/ 0.1°F\u003c\/li\u003e\n\u003cli\u003eTemperature Accuracy: ±0.5°C \/ ±0.9°F\u003c\/li\u003e\n\u003cli\u003eProbe Type: Polarographic with integrated temperature sensor\u003c\/li\u003e\n\u003cli\u003eCalibration: 1-point air calibration\u003c\/li\u003e\n\u003cli\u003eAuto-Off: After 8 minutes of non-use\u003c\/li\u003e\n\u003cli\u003eBattery: 4 x 1.5V AA (included)\u003c\/li\u003e\n\u003cli\u003eWaterproof Rating: IP67\u003c\/li\u003e\n\u003cli\u003eDimensions: 185 x 85 x 45 mm\u003c\/li\u003e\n\u003cli\u003eWeight: 5 lbs (with case)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat's Included - Complete Bundle\u003c\/h3\u003e\u003cp\u003eMW600 PRO meter, MA840 polarographic DO probe with 1m cable, calibration sleeve, electrolyte solution, membrane caps (2), batteries, and rugged hard carrying case for safe transport and storage.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMade in Romania\u003c\/strong\u003e by Milwaukee Instruments, trusted worldwide for over 30 years in professional water testing and analytical instrumentation.\u003c\/p\u003e","brand":"MILWAUKEE INSTRUMENTS","offers":[{"title":"Default Title","offer_id":40116444037207,"sku":"MW600-BOX","price":370.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/files\/MW600_BOX.png?v=1737069562"},{"product_id":"milwaukee-aq600-dissolved-oxygen-meter-kit","title":"Milwaukee AQ600 Dissolved Oxygen Meter Kit","description":"\u003ch2\u003eDO - Dissolved Oxygen Meter:  Designed to fit the needs for the water O2 testing in all types of market:  Range 0.0 – 19.9 ppm O2\/l , Resolution of 0.1mg\/L, Unit gives 1.5% Full Scale Accuracy, Includes a MA840 Polarographic D.O. Probe with 3 Meter Cable,  Spare Membranes, Starter Bottle of MA9071 Electrolyte Solution, Screwdriver for Calibration \u0026amp; a 9 V Battery ( Recommended Calibration Procedure is \"Open Air\" )\u003c\/h2\u003e\n\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cp\u003eThe Milwaukee MW600 PRO Portable Dissolved Oxygen meter is one of Milwaukee's most popular meters with its reliable and fast operation as well as its accuracy.\u003c\/p\u003e\n\u003cp\u003eThe Milwaukee PRO DO Meter is preferred by people looking for lab level accuracy without the cost. The Milwaukee DO Meter is popular with everyone from field biologists and educators to fish farmers and koi pond owners.\u003c\/p\u003e\n\u003ch2\u003eDesign features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFast, easy-to-read results with large digital LCD readout\u003c\/li\u003e\n\u003cli\u003eRepeatable, accuracy to \u003cspan class=\"single-product-meta-item-value\"\u003e±\u003c\/span\u003e1.5% FS\u003c\/li\u003e\n\u003cli\u003eLightweight and portable\u003c\/li\u003e\n\u003cli\u003eSimple 2 point open air calibration (see video below)\u003c\/li\u003e\n\u003cli\u003eUses MA840 reinforced polarographic probe with an oxygen-permeable polytetrafluroethylene (PTFE) membrane sensor\u003c\/li\u003e\n\u003cli\u003e5\u003cspan\u003e o-rings, membranes and one protective cap included\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e10 feet probe cable for extra flexibility when testing\u003c\/li\u003e\n\u003cli\u003e70 hours of battery life with continuous use (battery included) with low battery warning\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCare and Use\u003c\/h2\u003e\n\u003ch3\u003e“Open Air” Calibration Procedure\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e1. Remove the membrane\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTake the membrane off the end of the probe and dry the diode off. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Zero out the display\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eConnect the probe to the base unit and turn the unit on. Your display should read 0.0. If it does not, go to the position “0” screw on the front of the unit with the screw driver provided and through the access hole make the unit display read 0.0. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. Fill the membrane\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eGo to the membrane and put the “O” ring inside the membrane on the shoulder at the base of the threads. Fill the membrane to just short of the “O” ring with MA9071 electrolyte solution. Be sure that there are no bubbles inside the membrane. (Air bubbles are the main cause of calibration failure) \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4. Attach the membrane\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eScrew the membrane on to the probe. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5. Let stablize\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTurn the meter on and hang the probe off the end of a table pointing down and let the unit display stabilize (this may take 5 to 15 minutes)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e6. Adjust\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePush down and hold the “Cal” button on the front face of the meter and with the screwdriver go to the front Cal position “100%” and make the display read 100.\u003c\/p\u003e\n\u003cp\u003e \u003cstrong\u003eYou are now calibrated.\u003c\/strong\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eExtra tips\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWatch for the membrane having wrinkles or stretch marks. If you see wrinkles, replace with a new membrane.\u003c\/li\u003e\n\u003cli\u003eAlways use fresh electrolyte solution (MA9071).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eO\u003csub\u003e2\u003c\/sub\u003e\u003cspan\u003e \u003c\/span\u003eRange: 0.0 to 19.9 mg\/L\u003c\/li\u003e\n\u003cli\u003eO\u003csub\u003e2\u003c\/sub\u003e\u003cspan\u003e \u003c\/span\u003eresolution: 0.1 mg\/L\u003c\/li\u003e\n\u003cli\u003eO\u003csub\u003e2\u003c\/sub\u003e\u003cspan\u003e \u003c\/span\u003eAccuracy: ±1.5% Full Scale\u003c\/li\u003e\n\u003cli\u003eCalibration: Manual on 2 points (zero and slope)\u003c\/li\u003e\n\u003cli\u003eTemperature Compensation: Automatic, from 0 to 30°C\u003c\/li\u003e\n\u003cli\u003eProbe: MA840 refillable polargraphic probe included\u003c\/li\u003e\n\u003cli\u003eProbe Length: MA840 has a 10' cable\u003c\/li\u003e\n\u003cli\u003eMembranes: 5 included\u003c\/li\u003e\n\u003cli\u003eEnvironment: 0 to 50°C \/ 32 to 122°F; max RH 95%\u003c\/li\u003e\n\u003cli\u003eBattery Type: 1 x 9V alkaline (included)\u003c\/li\u003e\n\u003cli\u003eBattery Life: Approx. 70 hours of continuous use\u003c\/li\u003e\n\u003cli\u003eDimensions: 5.7 x 3.1 x 1.6 inches\u003c\/li\u003e\n\u003cli\u003eWeight: 7.5 ounces with battery\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!----\u003e","brand":"MILWAUKEE INSTRUMENTS","offers":[{"title":"Default Title","offer_id":40937087139927,"sku":"AQ600","price":370.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/files\/gps_generated_017d365e-8de4-4869-91a7-83c1d23d75c4.png?v=1749760759"},{"product_id":"milwaukee-mw190-max-dissolved-oxygen-bench-meter-logging","title":"Milwaukee MW190 MAX Dissolved Oxygen Bench Meter With Automatic Calibration","description":"\u003cp\u003e\u003cstrong\u003eHandling Time : 2 days\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cp\u003eThe Milwaukee MW190 MAX Bench Dissolved Oxygen meter is one of Milwaukee's most popular meters with its reliable and fast operation as well as its accuracy.\u003c\/p\u003e\n\u003cp\u003eThe Milwaukee MW190 MAX DO Bench Meter is preferred by people looking for lab level accuracy without the high cost. The Milwaukee DO Meter is popular with everyone from field biologists, educators, fish farmers, koi pond owners, education, water treatement plants and laboratories.\u003c\/p\u003e\n\u003ch2\u003eDesign features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFast, easy-to-read results with large digital LCD readout.\u003c\/li\u003e\n\u003cli\u003eRepeatable, accuracy to \u003cspan class=\"single-product-meta-item-value\"\u003e±\u003c\/span\u003e1.5% FS.\u003c\/li\u003e\n\u003cli\u003eLightweight and has a small benchtop footprint.\u003c\/li\u003e\n\u003cli\u003eSingle offset or dual point slope with open air 100% saturation calibration. \u003c\/li\u003e\n\u003cli\u003eAltitude and Salinity compensation. \u003c\/li\u003e\n\u003cli\u003eAutomatic temperature compensation.\u003c\/li\u003e\n\u003cli\u003eUses MA845 (included) reinforced polarographic probe with an oxygen-permeable polytetrafluroethylene (PTFE) membrane sensor\u003c\/li\u003e\n\u003cli\u003e5\u003cspan\u003e o-rings, membranes and one protective cap included\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e2 meter probe cable for extra flexibility when testing\u003c\/li\u003e\n\u003cli\u003eLogging up to 50 samples.\u003c\/li\u003e\n\u003cli\u003e12 VDC power supply.\u003c\/li\u003e\n\u003cli\u003eEasy RS232\/USB opto-isolated\u003c\/li\u003e\n\u003cli\u003eComplete with DO probe, initial calibration solutions and cables.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCare and Use\u003c\/h2\u003e\n\u003ch3\u003eProbe Preparation Calibration Procedure    \u003c\/h3\u003e\n\u003cp\u003eD.O. Probes are shipped dry:  To hydrate the probe and prepare it for use, connect it to the meter and procede as follows:\u003c\/p\u003e\n\u003cp\u003e1. Remove the the red and black cap. This cap is used for protection during shipping. \u003c\/p\u003e\n\u003cp\u003e2.  Wet the sensor by soaking the bottom 2.5 cm of the probe in electrolyte (MA9071) for 5 minutes.\u003c\/p\u003e\n\u003cp\u003e3.  Rinse the membrane (supplied with meter) with electrolyte solution while shaking it gently.  Refill with clean electrolyte solution.\u003c\/p\u003e\n\u003cp\u003e4.  Gently tap the sides of the membrane with the fingertip to ensure that no air bubbles remain trapped.  To avoid damaging the membrane, do not tap the membrane directly on the bottom.\u003c\/p\u003e\n\u003cp\u003e5.  Place the O-Ring (suppield with membranes) properly inside the membrane cap.\u003c\/p\u003e\n\u003cp\u003e6.  With the sensor facing down, screw the cap clockwise.  Some electrolyte solution will overflow. \u003c\/p\u003e\n\u003cp\u003e7.  Turn the unit on use on\/off key.\u003c\/p\u003e\n\u003cp\u003e8. All LCD tags are displayed and a beep is heard while the instrument performs a test.\u003c\/p\u003e\n\u003cp\u003e9.  The \"COND\" message will be displayed for about 45 seconds to inform the user that the probe is in auto-conditioning mode (automatic polarization).\u003c\/p\u003e\n\u003cp\u003e10.  Once \"COND\" dissappears, the probe is polarized and the instrument can be calibrated.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Calibration Offset Procedure\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e1.  Remove the clear protective cap.\u003c\/p\u003e\n\u003cp\u003e2.  Submerge the probe in MA9070 zero oxygen solution and stir for about 2-3 minutes.\u003c\/p\u003e\n\u003cp\u003e3.  Press CAL. The \"WAIT\" tag will blink on the LCD until reading is stable.\u003c\/p\u003e\n\u003cp\u003e4.  When the reading is stable, \"READY\" \u0026amp; \"ACCEPT\" tags are blinking.  Press ACCEPT to confirm the \"0.0%\" D.O. calibration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e  When the instrument is not in use, place the CLEAR plastic cap (supplied with probe) over the membrane.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExtra tips\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWatch for the membrane having wrinkles or stretch marks. If you see wrinkles, replace with a new membrane.\u003c\/li\u003e\n\u003cli\u003eAlways use fresh electrolyte solution (MA9071).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eO\u003csub\u003e2\u003c\/sub\u003e\u003cspan\u003e \u003c\/span\u003eRange: 0.00 to 45.00 mg\/L O2 (ppm)\u003c\/li\u003e\n\u003cli\u003e% Saturation O\u003csub\u003e2\u003c\/sub\u003e: 0.0 to 300.0% O2\u003c\/li\u003e\n\u003cli\u003eTemperature Range: -5.0 to 55.0°C (23.0 to 131.0°F)\u003c\/li\u003e\n\u003cli\u003eO\u003csub\u003e2\u003c\/sub\u003e\u003cspan\u003e \u003c\/span\u003eresolution: 0.01 (ppm) mg\/L\u003c\/li\u003e\n\u003cli\u003e% Saturation O\u003csub\u003e2\u003c\/sub\u003e\u003cspan\u003e \u003c\/span\u003eResolution: 0.1%\u003c\/li\u003e\n\u003cli\u003eTemperature Resolution: 0.1°C \/ 0.1°F\u003c\/li\u003e\n\u003cli\u003eO\u003csub\u003e2\u003c\/sub\u003e\u003cspan\u003e \u003c\/span\u003eAccuracy: ±1.5% Full Scale\u003c\/li\u003e\n\u003cli\u003e% Saturation O\u003csub\u003e2\u003c\/sub\u003e\u003cspan\u003e \u003c\/span\u003eAccuracy: ± 1.5% Full Scale (@20°C \/ 68°F)\u003c\/li\u003e\n\u003cli\u003eTemperature Accuracy: ± 0.4°C (±0.8°F)\u003c\/li\u003e\n\u003cli\u003eCalibration DO: Automatic single (offset MA9070) or dual point with slope in 100% saturated air\u003c\/li\u003e\n\u003cli\u003eCalibration Temperature: 2 point at 0 and 50°C (32.0 and 122.0°F)\u003c\/li\u003e\n\u003cli\u003eAltitude compensation: 0 to 4000 m (13,120')\u003c\/li\u003e\n\u003cli\u003eAltitude Resolution: 100 m (328')\u003c\/li\u003e\n\u003cli\u003eSalinity Compensation: 0 to 40g\/L\u003c\/li\u003e\n\u003cli\u003eSalinity Resolution: 1 g\/L\u003c\/li\u003e\n\u003cli\u003eTemperature Compensation: Automatic, 0.0 to 50.0°C (32.0 to 122.0°F)\u003c\/li\u003e\n\u003cli\u003eProbe: MA840\/2 polargraphic probe (included)\u003c\/li\u003e\n\u003cli\u003eMembranes: 5 included with O-Rings (included)\u003c\/li\u003e\n\u003cli\u003eComputer Interface: RS232\/USB opto-isolated\u003c\/li\u003e\n\u003cli\u003ePower Supply: 12 VDC (included)\u003c\/li\u003e\n\u003cli\u003eDimensions Meter: 230 x 160 x 95 mm (9.0 x 6.3 x 3.7 inches)\u003c\/li\u003e\n\u003cli\u003eWeight: 0.9 kg (2.0 lbs.)\u003c\/li\u003e\n\u003cli\u003eEnvironment: 0 to 50°C \/ 32 to 122°F; max RH 95%\u003c\/li\u003e\n\u003cli\u003eWarranty: 3 years (meter)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!----\u003e","brand":"MILWAUKEE INSTRUMENTS","offers":[{"title":"Default Title","offer_id":41038772535383,"sku":"MW190US","price":1094.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/files\/MW190_Right_angle__62560.jpg?v=1718128886"},{"product_id":"milwaukee-mw605-max-waterproof-galvanic-dissolved-oxygen-meter-with-automatic-calibration","title":"Milwaukee MW605 MAX Waterproof Dissolved Oxygen Meter - Galvanic DO Logger IP67","description":"\u003ch2\u003eMilwaukee MW605 MAX Waterproof Dissolved Oxygen Meter: Professional Galvanic DO Testing with Data Logging\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eMilwaukee MW605 MAX\u003c\/strong\u003e is a professional-grade galvanic dissolved oxygen (DO) meter that delivers lab-level accuracy without the cost or complexity of optical sensors. Featuring \u003cstrong\u003e±1.5% accuracy\u003c\/strong\u003e, IP67 waterproof construction, and advanced data logging capabilities, this meter is the trusted choice for aquaculture, fish farming, water treatment plants, environmental monitoring, and laboratory applications.\u003c\/p\u003e\n\n\u003ch3\u003eKey Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGalvanic Technology:\u003c\/strong\u003e No conditioning time required—ready to measure immediately\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLab-Level Accuracy:\u003c\/strong\u003e ±1.5% of reading for reliable, professional results\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIP67 Waterproof:\u003c\/strong\u003e Fully submersible, rugged design built for field and lab use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced Data Logging:\u003c\/strong\u003e Store up to 1,000 samples with on-demand, stability, or interval logging\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB Connectivity:\u003c\/strong\u003e Easy data export via micro USB for analysis and record-keeping\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic Compensation:\u003c\/strong\u003e ATC for temperature, plus manual altitude and salinity compensation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10-Foot Cable:\u003c\/strong\u003e Extra-long probe cable for flexibility in tanks, ponds, and field testing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGLP Compliance:\u003c\/strong\u003e Dedicated GLP key to store and recall system status data\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Choose the MW605 MAX?\u003c\/h3\u003e\n\u003cp\u003eThe MW605 MAX is preferred by professionals who need accurate dissolved oxygen measurements without the high cost of optical DO meters. From field biologists and educators to fish farmers, koi pond owners, water treatment plants, and laboratories, the MW605 MAX delivers fast, reliable readings with comprehensive data management. The galvanic probe technology means no warm-up or conditioning time—just calibrate and measure.\u003c\/p\u003e\n\n\u003ch3\u003eWhat Makes Galvanic Technology Superior?\u003c\/h3\u003e\n\u003cp\u003eUnlike polarographic DO probes that require conditioning time, the \u003cstrong\u003egalvanic probe\u003c\/strong\u003e is ready to measure immediately. The MA860 galvanic probe uses a silver cathode and zinc anode with an oxygen-permeable PTFE membrane, providing fast response times and stable readings without the wait. This makes the MW605 MAX ideal for field work where time and efficiency matter.\u003c\/p\u003e\n\n\u003ch3\u003eAdvanced Features\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eProfessional Accuracy:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e±1.5% of reading ± 1 digit for dissolved oxygen\u003c\/li\u003e\n\u003cli\u003e±0.4°C (±0.8°F) temperature accuracy\u003c\/li\u003e\n\u003cli\u003e0.0 to 45.00 mg\/L (ppm) DO range\u003c\/li\u003e\n\u003cli\u003e0.0 to 300.0% saturation range\u003c\/li\u003e\n\u003cli\u003e0.01 mg\/L (ppm) \/ 0.1% saturation resolution\u003c\/li\u003e\n\u003cli\u003eAutomatic Temperature Compensation (ATC) from 0-50°C (32-122°F)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eComprehensive Compensation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature:\u003c\/strong\u003e Automatic compensation from 0.0 to 50.0°C (32.0 to 122.0°F)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAltitude:\u003c\/strong\u003e Manual compensation from -500 to 4,000 m (-1,640' to 13,123') with 100 m resolution\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSalinity:\u003c\/strong\u003e Manual compensation from 0 to 40 g\/L with 1 g\/L resolution\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eProfessional Data Logging:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMaximum 1,000 log records (stored in up to 100 lots)\u003c\/li\u003e\n\u003cli\u003eOn-demand logging: 200 samples\u003c\/li\u003e\n\u003cli\u003eStability logging: 200 samples (auto-log when reading stabilizes)\u003c\/li\u003e\n\u003cli\u003eInterval logging: 1,000 samples at set time intervals\u003c\/li\u003e\n\u003cli\u003eUSB data export via micro USB port\u003c\/li\u003e\n\u003cli\u003eGLP data with date and time stamps\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eRugged Design:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIP67 waterproof rating—fully submersible and dustproof\u003c\/li\u003e\n\u003cli\u003eLarge digital LCD display for easy reading\u003c\/li\u003e\n\u003cli\u003eLightweight and portable (0.57 lbs \/ 260 g)\u003c\/li\u003e\n\u003cli\u003e200-hour battery life (3 x AA alkaline batteries included)\u003c\/li\u003e\n\u003cli\u003eLow battery warning\u003c\/li\u003e\n\u003cli\u003eAuto-off function to preserve battery\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eMA860 Galvanic Probe Included\u003c\/h3\u003e\n\u003cp\u003eThe MW605 MAX comes with the \u003cstrong\u003eMA860 reinforced galvanic dissolved oxygen probe\u003c\/strong\u003e featuring a 10-foot (3-meter) cable for maximum flexibility. This professional-grade probe features:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGalvanic Technology:\u003c\/strong\u003e No conditioning time—ready to measure immediately\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilver Cathode:\u003c\/strong\u003e High-quality sensor for accurate, stable readings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZinc Anode:\u003c\/strong\u003e Long-lasting electrode design\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePTFE Membrane:\u003c\/strong\u003e Oxygen-permeable polytetrafluoroethylene membrane sensor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in Thermistor:\u003c\/strong\u003e Integrated temperature sensor for automatic compensation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10-Foot Cable:\u003c\/strong\u003e Extra length for deep tanks, ponds, and field applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIN 7-Pin Connector:\u003c\/strong\u003e Secure, professional connection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIP67 Body:\u003c\/strong\u003e PP and ABS construction with waterproof rating\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eComplete Kit Includes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMW605 MAX waterproof meter\u003c\/li\u003e\n\u003cli\u003eMA860 galvanic dissolved oxygen probe with 10-foot cable\u003c\/li\u003e\n\u003cli\u003e2 spare O-rings (MA861 membranes)\u003c\/li\u003e\n\u003cli\u003e1 protective cap\u003c\/li\u003e\n\u003cli\u003eElectrolyte solution MA9072S (30 mL)\u003c\/li\u003e\n\u003cli\u003e3 x AA alkaline batteries\u003c\/li\u003e\n\u003cli\u003eMicro USB cable for data download\u003c\/li\u003e\n\u003cli\u003eInstruction manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDissolved Oxygen Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRange: 0.0 to 45.00 mg\/L (ppm)\u003c\/li\u003e\n\u003cli\u003eRange: 0.0 to 300.0% saturation\u003c\/li\u003e\n\u003cli\u003eResolution: 0.01 mg\/L (ppm) \/ 0.1% saturation\u003c\/li\u003e\n\u003cli\u003eAccuracy: ±1.5% of reading ± 1 digit\u003c\/li\u003e\n\u003cli\u003eCalibration: One or two % saturation calibration points at 0% (MA9070 zero oxygen solution) and 100% (water-saturated air)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eTemperature Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRange (Meter): -20.0 to 120.0°C (-4.0 to 248.0°F)\u003c\/li\u003e\n\u003cli\u003eRange (Probe): 0.0 to 50.0°C (32.0 to 122.0°F)\u003c\/li\u003e\n\u003cli\u003eResolution: 0.1°C (0.1°F)\u003c\/li\u003e\n\u003cli\u003eAccuracy: ±0.4°C (±0.8°F)\u003c\/li\u003e\n\u003cli\u003eCompensation: Automatic from 0.0 to 50.0°C (32.0 to 122.0°F)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eCompensation Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAltitude: -500 to 4,000 m (-1,640' to 13,123') with 100 m (328') resolution\u003c\/li\u003e\n\u003cli\u003eSalinity: 0 to 40 g\/L with 1 g\/L resolution\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eData Logging:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMaximum: 1,000 log records (up to 100 lots)\u003c\/li\u003e\n\u003cli\u003eOn-demand: 200 logs\u003c\/li\u003e\n\u003cli\u003eOn-stability: 200 logs\u003c\/li\u003e\n\u003cli\u003eInterval: 1,000 logs\u003c\/li\u003e\n\u003cli\u003ePC Connectivity: Micro USB port\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eGeneral Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBattery: 3 x 1.5V AA alkaline (included)\u003c\/li\u003e\n\u003cli\u003eBattery Life: Approx. 200 hours\u003c\/li\u003e\n\u003cli\u003eEnvironment: 0-50°C \/ 32-122°F; max RH 95%\u003c\/li\u003e\n\u003cli\u003eDimensions (Meter): 8 x 3.3 x 2.0 inches (200 x 85 x 50 mm)\u003c\/li\u003e\n\u003cli\u003eWeight (Meter): 0.57 lbs (260 g)\u003c\/li\u003e\n\u003cli\u003eCasing: IP67 waterproof and dustproof\u003c\/li\u003e\n\u003cli\u003eProbe Cable: 10 feet (3 meters)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAquaculture and fish farming\u003c\/li\u003e\n\u003cli\u003eKoi pond management\u003c\/li\u003e\n\u003cli\u003eWater treatment plants\u003c\/li\u003e\n\u003cli\u003eWastewater treatment facilities\u003c\/li\u003e\n\u003cli\u003eEnvironmental monitoring and field biology\u003c\/li\u003e\n\u003cli\u003eLaboratory research and testing\u003c\/li\u003e\n\u003cli\u003eAquarium maintenance (freshwater and marine)\u003c\/li\u003e\n\u003cli\u003eStream and river water quality assessment\u003c\/li\u003e\n\u003cli\u003eHydroponics and aquaponics systems\u003c\/li\u003e\n\u003cli\u003eEducational institutions and research\u003c\/li\u003e\n\u003cli\u003eBrewery and fermentation monitoring\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCare \u0026amp; Maintenance\u003c\/h3\u003e\n\u003cp\u003eProper maintenance of the galvanic probe ensures accurate, stable measurements and extends probe life.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eProbe Maintenance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe silver cathode should always be bright and untarnished\u003c\/li\u003e\n\u003cli\u003eIf tarnished or stained, clean the cathode gently with a lint-free cloth\u003c\/li\u003e\n\u003cli\u003eRinse the probe with deionized or distilled water after each use\u003c\/li\u003e\n\u003cli\u003eReplace the membrane cap using fresh electrolyte solution\u003c\/li\u003e\n\u003cli\u003eRecalibrate meter after membrane replacement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eMembrane Maintenance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePerfect membrane condition is essential for accurate, stable measurements\u003c\/li\u003e\n\u003cli\u003eProtect the thin membrane from scratches, abrasion, or contact with solids\u003c\/li\u003e\n\u003cli\u003eIf not measuring for a few hours, protect membrane with the plastic protective cap\u003c\/li\u003e\n\u003cli\u003eIf fouled, rinse carefully with distilled or deionized water\u003c\/li\u003e\n\u003cli\u003eIf damaged, replace the membrane cap immediately\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChange membrane every 8 weeks\u003c\/strong\u003e or more frequently in fouling environments\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCheck and replace electrolyte fill solution every 4 weeks\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eStorage:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eShort-term storage:\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSwitch meter off and clean probe before storage\u003c\/li\u003e\n\u003cli\u003eStore probe with plastic cap on\u003c\/li\u003e\n\u003cli\u003eCan also store in beaker of deionized water with protective cap removed\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eLong-term storage (dry storage):\u003c\/em\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eDisconnect probe from meter\u003c\/li\u003e\n\u003cli\u003eUnscrew membrane cap\u003c\/li\u003e\n\u003cli\u003eRemove any electrolyte solution from cap\u003c\/li\u003e\n\u003cli\u003eRinse probe anode\/cathode assembly with distilled water and blot dry\u003c\/li\u003e\n\u003cli\u003eScrew membrane cap onto probe until hand tight\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eCalibration\u003c\/h3\u003e\n\u003cp\u003eThe MW605 MAX offers simple 1 or 2-point % saturation calibration:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e100% Calibration:\u003c\/strong\u003e Water-saturated air (standard method)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0% Calibration:\u003c\/strong\u003e Zero oxygen solution (MA9070) for enhanced accuracy\u003c\/li\u003e\n\u003cli\u003eAutomatic temperature compensation during calibration\u003c\/li\u003e\n\u003cli\u003eGLP function stores calibration data with date and time\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Milwaukee Instruments?\u003c\/h3\u003e\n\u003cp\u003eMilwaukee Instruments is trusted worldwide by aquaculture professionals, water treatment facilities, environmental scientists, and laboratories for rugged, reliable testing equipment. The MW605 MAX combines Milwaukee's legendary build quality with proven galvanic DO technology and advanced data logging—backed by exceptional customer service and decades of proven performance in the most demanding applications.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eProfessional dissolved oxygen testing made simple:\u003c\/strong\u003e Get lab-quality DO measurements with galvanic technology that's ready when you are, plus comprehensive logging and USB connectivity for complete documentation.\u003c\/p\u003e","brand":"MILWAUKEE INSTRUMENTS","offers":[{"title":"Default Title","offer_id":41038838169687,"sku":"MW605","price":833.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/files\/MW605__25711.jpg?v=1718131453"},{"product_id":"milwaukee-mw600-pro-dissolved-oxygen-meter-bundle-pack","title":"Milwaukee MW600 PRO Dissolved Oxygen Meter-Bundle Pack","description":"\u003ch2 data-mce-fragment=\"1\"\u003eDESCRIPTION\u003c\/h2\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe Milwaukee MW600 PRO Portable Dissolved Oxygen meter is one of Milwaukee's most popular meters with its reliable and fast operation as well as its accuracy.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe Milwaukee PRO DO Meter is preferred by people looking for lab level accuracy without the cost. The Milwaukee DO Meter is popular with everyone from field biologists and educators to fish farmers and koi pond owners.\u003c\/p\u003e\n\u003ch2 data-mce-fragment=\"1\"\u003eDESIGN FEATURES\u003c\/h2\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eFast, easy-to-read results with large digital LCD readout\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eRepeatable, accuracy to \u003cspan data-mce-fragment=\"1\" class=\"single-product-meta-item-value\"\u003e±\u003c\/span\u003e1.5% FS\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eLightweight and portable\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eSimple 2 point open air calibration (see video below)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eUses MA840 reinforced polarographic probe with an oxygen-permeable polytetrafluroethylene (PTFE) membrane sensor\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e5\u003cspan data-mce-fragment=\"1\"\u003e o-rings, membranes and one protective cap included\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e10 feet probe cable for extra flexibility when testing\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e70 hours of battery life with continuous use (battery included) with low battery warning\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-mce-fragment=\"1\"\u003eCARE AND USE\u003c\/h2\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003e“OPEN AIR” CALIBRATION PROCEDURE\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e1. Remove the membrane\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eTake the membrane off the end of the probe and dry the diode off.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e2. Zero out the display\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eConnect the probe to the base unit and turn the unit on. Your display should read 0.0. If it does not, go to the position “0” screw on the front of the unit with the screw driver provided and through the access hole make the unit display read 0.0.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e3. Fill the membrane\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eGo to the membrane and put the “O” ring inside the membrane on the shoulder at the base of the threads. Fill the membrane to just short of the “O” ring with MA9071 electrolyte solution. Be sure that there are no bubbles inside the membrane. (Air bubbles are the main cause of calibration failure)\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e4. Attach the membrane\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eScrew the membrane on to the probe.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e5. Let stablize\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eTurn the meter on and hang the probe off the end of a table pointing down and let the unit display stabilize (this may take 5 to 15 minutes)\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e6. Adjust\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003ePush down and hold the “Cal” button on the front face of the meter and with the screwdriver go to the front Cal position “100%” and make the display read 100.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eYou are now calibrated.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eEXTRA TIPS\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWatch for the membrane having wrinkles or stretch marks. If you see wrinkles, replace with a new membrane.\u003c\/li\u003e\n\u003cli\u003eAlways use fresh electrolyte solution (MA9071). \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003ca href=\"https:\/\/milwaukeeinstruments.com\/content\/MW600_Dissolved_Oxygen_TempComp_Worksheet.xls\"\u003e\u003cspan\u003e\u003cstrong\u003eDOWNLOAD EXCEL WORKSHEET FOR TEMPERATURE COMPENSATION ON MW600 DO METER (XLS)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eDetermine water temperature, insert reading from meter display, and this worksheet will automatically calculate a temperature-compensated DO reading for you.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003ch2\u003eSPECIFICATIONS\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eO\u003csub\u003e2\u003c\/sub\u003e\u003cspan\u003e \u003c\/span\u003eRange: 0.0 to 19.9 mg\/L\u003c\/li\u003e\n\u003cli\u003eO\u003csub\u003e2\u003c\/sub\u003e\u003cspan\u003e \u003c\/span\u003eresolution: 0.1 mg\/L\u003c\/li\u003e\n\u003cli\u003eO\u003csub\u003e2\u003c\/sub\u003e\u003cspan\u003e \u003c\/span\u003eAccuracy: ±1.5% Full Scale\u003c\/li\u003e\n\u003cli\u003eCalibration: Manual on 2 points (zero and slope)\u003c\/li\u003e\n\u003cli\u003eTemperature Compensation: Automatic, from 0 to 30°C\u003c\/li\u003e\n\u003cli\u003eProbe: MA840 refillable polarographic probe included\u003c\/li\u003e\n\u003cli\u003eMembranes: 5 included\u003c\/li\u003e\n\u003cli\u003eEnvironment: 0 to 50°C \/ 32 to 122°F; max RH 95%\u003c\/li\u003e\n\u003cli\u003eBattery Type: 1 x 9V alkaline (included)\u003c\/li\u003e\n\u003cli\u003eBattery Life: Approx. 70 hours of continuous use\u003c\/li\u003e\n\u003cli\u003eDimensions: 5.7 x 3.1 x 1.6 inches\u003c\/li\u003e\n\u003cli\u003eWeight: 7.5 ounces with battery\u003c\/li\u003e\n\u003cli\u003eMA9070 (500 ML) \u0026amp; MA9071 (230 ML)-Included.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MILWAUKEE INSTRUMENTS","offers":[{"title":"Default Title","offer_id":41315165929559,"sku":"MW600-BUNDLE","price":377.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/files\/MW600proplus.png?v=1728841195"},{"product_id":"milwaukee-zero-oxygen-calibration-solution-kit-do-meter","title":"Milwaukee Instruments Zero Oxygen Calibration Solution Kit - DO Meter Calibration Bundle","description":"\u003ch2\u003eMilwaukee Instruments Zero Oxygen Calibration Solution Kit Bundle\u003c\/h2\u003e\u003cp\u003eEnsure accurate dissolved oxygen measurements with the \u003cstrong\u003eMilwaukee Instruments Zero Oxygen Calibration Solution Kit\u003c\/strong\u003e. This professional-grade calibration bundle provides everything you need to calibrate your DO (Dissolved Oxygen) meters to zero oxygen levels for precise, reliable readings.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eZero Oxygen Calibration:\u003c\/strong\u003e Specially formulated solution for accurate zero-point calibration of DO meters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Kit:\u003c\/strong\u003e Includes all necessary components for proper calibration procedures\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLab-Grade Quality:\u003c\/strong\u003e Milwaukee Instruments professional quality ensures accuracy and reliability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy to Use:\u003c\/strong\u003e Simple calibration process for quick setup and maintenance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended Shelf Life:\u003c\/strong\u003e Properly sealed solutions maintain stability for consistent results\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003ePerfect for calibrating dissolved oxygen meters used in:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAquaculture and fish farming operations\u003c\/li\u003e\n\u003cli\u003eWastewater treatment facilities\u003c\/li\u003e\n\u003cli\u003eEnvironmental water quality monitoring\u003c\/li\u003e\n\u003cli\u003eLaboratory research and testing\u003c\/li\u003e\n\u003cli\u003eHydroponics and aquaponics systems\u003c\/li\u003e\n\u003cli\u003eBrewing and fermentation processes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhy Calibration Matters\u003c\/h3\u003e\u003cp\u003eRegular calibration with zero oxygen solution is essential for maintaining the accuracy of your DO meter. Dissolved oxygen measurements are critical for aquatic life, water quality assessment, and process control. This calibration kit ensures your meter provides reliable readings you can trust.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCompatible with Milwaukee Instruments dissolved oxygen meters and other DO meters requiring zero oxygen calibration.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Milwaukee Instruments","offers":[{"title":"Default Title","offer_id":42567589625943,"sku":null,"price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/files\/MA9070_bundle_New.png?v=1723485401"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/collections\/logo-166604785_1e9e1fab-7320-473b-b75d-833082c88b24.png?v=1734125498","url":"https:\/\/getultimatenow.com\/collections\/milwaukee-dissolved-oxygen-meter\/atc-dissolved-oxygen.oembed","provider":"Get Ultimate Now ","version":"1.0","type":"link"}