HM Digital Hydroponic Supplies
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HM Digital COM-80 Waterproof EC/TDS/Temp HydroTester/Meter PPM Reader C/F
$69.99Free shippingHM Digital HMPH80 HMDPHM80 pH/Temperature Meter, 0-14 pH Range, 1 pH...
$42.63Free shippingPPM Calibration Solution 1000ppm-3oz
$14.99Free shippingHM Digital Ph Meter PH-80
$39.99Free shippingHM Digital 1000 PPM CP-1000 20ml calibration solution (1-pack)
$7.99Free shippingHM Digital COM-80: EC/TDS HydroTester
$36.99Free shippingHM Digital COM-80 EC/TDS/Temp Waterproof Hydro Tester
$42.95or Best Offer$5.00 shippingHM Digital PH-80S PH/Temperature Meter
$46.95or Best Offer$5.00 shippingHM Digital HydroMaster HM-100 Continuous pH/EC/TDS/Temp Monitor
$289.95or Best Offer$5.00 shippingHM Digital HMPH80 HMDPHM80 pH/Temperature Meter, 0-14 pH Range, 1 pH...
$63.59Free shipping