HM Digital Professional Series EC/TDS/Temp Meter (Long)The COM 100L is a professional grade level 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 electrical conductivity (EC), total dissolved solids (TDS), and temperature. Four scales: S, mS, ppm 0. 5 (NaCl) Scale & 0. 7
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HM Digital Professional Series EC/TDS/Temp Meter (Long)