HM Digital COM-300 Ph/Tds/EC/Temp Meter 891144000076 Digital calibration can be done

Digital calibration can be done individually on each line

and complete mounting kit makes it an essential tool for applications where pH stability matters

Get up to one hundred gallons or 3 months of use for a single person—whichever comes first—and unlock longevity that's up to two times greater than common water pitchers

Labs & scientific research

HM Digital COM-300 Ph/Tds/EC/Temp Meter 891144000076 Digital calibration can be doneThe COM 300 is a professional grade level pH EC TDS Temp meter ideal for all water quality testing, hydroponics, water purification applications, wastewater regulation, aquaculture, colloidal silver, labs & scientific testing, pools & spas, ecology testing, boilers & cooling towers, water treatment and more. FEATURES: Measures Potential Hydrogen (pH), Electrical Conductivity (EC), Total Dissolved Solids (TDS), Salinity and Temperature Five scales: pH,