HM Digital Waterproof EC/TDS/Temp Combo Meter

The COM-100 is a professional level EC/TDS meter at an unbeatable price. Ideal for all water quality testing, water purification applications, wastewater regulation, aquaculture, hydroponics, 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), salinity and temperature. Four scales:,"_µS, mS, ppm, ppt (mS and ppt are new) Three different non-linear EC-to-TDS conversion factors (KCl, 442TM, NaCl). Automatic Temperature Compensation (ATC) using three temperature coefficients Waterproof housing (IP-67 rating) Measurement Range: 0-9990,"_µS; 0-8560 ppm; 0-9.99 mS; 0-8.56 ppt Digital Calibration (push button) to any point within the meter's range Auto-off function, data-hold function and low-battery indicator Display: large and easy-to-read LCD screen includes simultaneous temperature reading. Replaceable Sensor (model SP-C