and general water quality testing

Laboratory & Research

Emergency preparedness and disaster relief

Simply fill the upper reservoir and let gravity do the work

Wait for about 1 second for the reading to stabilize

HM Digital COM-80 + PH-80 + PH-STOR + C342 COMBO - PH/TDS/EC/PPM Meter contaminant removal and general water quality testingHM Digital COM 80 TDS EC meter + PH 80 pH meter + PH STOR storage solution + C342 ppm TDS EC solution Meter Solution COMBO COM 80 COM 80: EC TDS HydroTester Series The COM 80 is easily the most advanced economically priced, reliable EC TDS meter on the market. With its versatility and durability, it is ideal for testing applications such as hydroponics & gardening, pools & spas, aquariums & reef tanks, water ionizers, drinking water and more.