HM Digital COM-80 EC/TDS/Temp Waterproof Hydro Tester growing-media General use rates: 1-4 Tbsp

General use rates: 1-4 Tbsp per gallon or 1/4-1 cup per cubic foot of soil

Available in both a 600 watt and 1

Fixture Requirement Open Rated

The large tea bag will work in brewers from 10 gallon up to 800 Gallon

Keep out of reach of children

HM Digital COM-80 EC/TDS/Temp Waterproof Hydro Tester growing-media General use rates: 1-4 TbspThe COM 80 is an economically priced, reliable EC TDS meter that is ideal for testing applications such as hydroponics & gardening, pools & spas, aquariums & reef tanks, water ionizers, drinking water and more. Measures electrical conductivity (EC), total dissolved solids (TDS). Excellent for hydroponic nutrient testing. Four scales: EC: S, mS; TDS: ppm, ppt Automatic Temperature Compensation (ATC) Water resistant Measurement Range: 0 9990 S; 0 5000