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Classic formula that is compatible in hydroponic and recirculating systems
OEM quality
*** DUE TO HIGH DEMAND
Formulated with Canadian sphagnum peat moss for increased moisture retention
an A part and a B part
HM Digital EC/TDS HydroTester Model COM-80 gc 720 Classic formula that is compatibleThe 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 nutrient testing. Four scales: EC: S, mS; TDS: ppm, ppt. This tester has automatic temperature compensation (ATC) and is water resistant. Measurement range: 09990
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