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hydroponic plants
The only lighting controllers featuring industrial-grade ballast-rated relays
Superior quality
growth rates and plant and root development
temperature and humidity during the day night periods
HM Digital EC/TDS HydroTester Model COM-80 Size:HM Digital Water Resistant Ec/TDS Meter w/ Temperature in C/F Hydrotester (Model COM-80) hydroponic plantsThe 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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