{"product_id":"milwaukee-ma991b-1-lab-grade-glass-ph-probe-bnc-gel-filled","title":"Milwaukee MA991B\/1 Lab-Grade Glass pH Probe – BNC Connector, Gel-Filled, Single Junction","description":"\u003ch1\u003eMilwaukee MA991B\/1 Lab-Grade Glass pH Probe – BNC Connector\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003ePrecision pH measurement built for education, student labs, and general-purpose water testing.\u003c\/strong\u003e The Milwaukee MA991B\/1 is a professional-grade single-junction glass pH electrode engineered for environments where accuracy, ease of cleaning, and minimal maintenance matter most — from high school science classrooms to university research labs.\u003c\/p\u003e\n\u003cp\u003ePicture a busy lab period: students rotating through stations, each needing reliable, repeatable pH readings. The MA991B\/1's smooth glass body wipes clean in seconds, the gel-filled reference never needs refilling, and the universal BNC connector snaps onto any Milwaukee meter in one click. Less downtime. More learning.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003eLab-grade glass electrode\u003c\/strong\u003e — accurate, repeatable pH readings for research and teaching\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eSingle-junction Ag\/AgCl reference\u003c\/strong\u003e — stable reference potential for general-purpose measurement\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eGel-filled electrolyte\u003c\/strong\u003e — maintenance-free; no refilling ever required\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eEasy-clean spherical glass membrane\u003c\/strong\u003e — rinse and reuse between students instantly\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eUniversal BNC quick-connect\u003c\/strong\u003e — fits any Milwaukee BNC meter, monitor, or controller\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eWide pH range: 0–13\u003c\/strong\u003e — covers virtually all educational and general lab applications\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eFull temperature range: 0–100°C \/ 32–212°F\u003c\/strong\u003e — suitable for hot and cold sample testing\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003e1-metre \/ 3 ft cable\u003c\/strong\u003e — flexible reach for benchtop and field setups\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eMade in Romania\u003c\/strong\u003e — European manufacturing quality standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdiv class=\"overflow-x-auto tech-specs-table-wrapper\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMA991B\/1\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 – 13.0 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\u003e0–100°C \/ 32–212°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReference Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSingle junction, Ag\/AgCl\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReference Electrolyte\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGel-filled (maintenance-free)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReference Junction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCeramic, single\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMembrane Shape\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSpherical glass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBody Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGlass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConnector Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBNC (quick-connect)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCable Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 m \/ 3 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8 oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGrade\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLaboratory\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRomania\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBarcode \/ UPC\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e810666009211\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eWorks with \u003cstrong\u003eany Milwaukee Instruments pH meter featuring a BNC connector\u003c\/strong\u003e — including portable handheld meters, benchtop meters, wall-mounted monitors, and controllers. Also compatible with third-party BNC-equipped instruments.\u003c\/p\u003e\n\n\u003ch2\u003eIdeal Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHigh school and university science classrooms\u003c\/li\u003e\n\u003cli\u003eStudent and teaching laboratories\u003c\/li\u003e\n\u003cli\u003eEnvironmental water quality testing\u003c\/li\u003e\n\u003cli\u003eGeneral laboratory research and QC\u003c\/li\u003e\n\u003cli\u003eAquarium and aquaculture water monitoring\u003c\/li\u003e\n\u003cli\u003eHydroponics and nutrient solution testing\u003c\/li\u003e\n\u003cli\u003eFood and beverage quality control\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose the MA991B\/1 for Education?\u003c\/h2\u003e\n\u003cp\u003eBusy teachers and lab managers need equipment that works — every time, for every student. The MA991B\/1's gel-filled reference eliminates electrolyte refilling, the glass body cleans in seconds with distilled water, and the BNC connector ensures a secure, repeatable connection to your existing Milwaukee meters. No fuss. No downtime.\u003c\/p\u003e\n\n\u003ch2\u003eMaintenance \u0026amp; Care\u003c\/h2\u003e\n\u003cp\u003eRinse the glass body with distilled water after each use and store with the protective cap in place. Calibrate regularly using pH 4.01, 7.01, and 10.01 buffer solutions for optimal accuracy. No electrolyte refilling required.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eNote: Meters sold separately.\u003c\/em\u003e\u003c\/p\u003e","brand":"MILWAUKEE INSTRUMENTS","offers":[{"title":"Default Title","offer_id":41292775751767,"sku":"MA991B\/1","price":62.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/files\/MA991B__30196.1613404446.jpg?v=1727568583","url":"https:\/\/getultimatenow.com\/products\/milwaukee-ma991b-1-lab-grade-glass-ph-probe-bnc-gel-filled","provider":"Get Ultimate Now ","version":"1.0","type":"link"}