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Waterproof EC/TDS/Temp Combo

Item # COM-100

HM Digital COM-100 EC (Electrical Conductivity) TDS (Total Dissolved Solids) Temperature Combo Tester is the ideal product for all water quality testing, water purification applications, wastewater regulation, aquaculture, hydroponics, colloidal silver, labs and scientific testing, pools and spas, ecology testing, boilers and cooling towers, water treatment and more. The COM-100 is a TDS meter tester with an unbeatable price.


Additional Information

Four scales: µS, mS, ppm, ppt (mS and ppt are new)



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