Offers HM Digital
HM Digital TDS-3 TDS Meter Handheld tds Tester With Large LCD Screen Includes ATC Temperature Reading Testing For Hydroponics Gardening Aquariums Reefs Pools Spas Water Treatment
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HM Digital 342ppm TDS Calibration Solution (a.k.a Water Testing Solution) 3 fl oz (90 ml)
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HM Digital DM-2 tds Inline-Dual TDS commercial measuring device for testing hydroponics, gardening, aquarium, reefs, pools, spas, water treatment, drinking water filter systems
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