HM Digital EC/TDS HydroTester Model COM-80 HGC707067 using 4 in PVC or

using 4 in PVC or 4 in DWV plastic pipe works best

By installing the in-line Monitor with the mixing chamber kit

It provides a compact quick and handy way to manage the success of your crops to ensure maximum uptake of nutrients

phosphate rock

This high-performance blend delivers oxygen to plant roots while retaining moisture and nutrients – giving you more control over your fertigation regimen

HM Digital EC/TDS HydroTester Model COM-80 HGC707067 using 4 in PVC orThe 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