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The largest selection of hydroponic supplies in Metro Detroit, Michigan. Browse grow lighting, growing media, pest control, and more.
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Brand: HM Digital Meters
HM Digital 1000 ppm TDS Calibration Solution, 3 oz (90 ml)
HM Digital AquaPro TDS/Temperature Meter
HM Digital COM-100 Waterproof EC/TDS/Temp Combo Meter
HM Digital COM-80 EC/TDS/Temp Waterproof Hydro Tester
HM Digital HydroMaster HM-100 Continuous pH/EC/TDS/Temp Monitor
HM Digital HydroMaster Portable/Wall Mount/Bench Continuous pH/EC/TDS/Temp
HM Digital Hydromaster Replacement EC/TDS Probe
HM Digital PH-200 Waterproof pH/Temperature Meter
HM Digital PH-80 pH/Temperature Meter
HM Digital PH-STOR pH Electrode Storage Solution
HM Digital Replacement Platinum Sensor for COM-100
