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- HM Digital Test Kits
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357A Replacement 1.5v Button Cell Battery 10-Pack
(357A)The HM Digital 357A 1.5 V Button Cell Battery Replacement is the correct replacement for the following models: HM Digital TDS-3 HM Digital TDS-4 HM Digital TDS-4TM HM Digital TM-1 HM Digital COM-100 HM Digital DM-1 The 357A (1.5v) Button Cell Battery Replacement is a battery replacement for your HM…
Our Price: $ 4.00Retail:$5.72Save:$1.72 (30%)In StockDiscontinued Product. Read Description for Options.View Details -
HM Digital AquaPro AP-1 Water Quality Tester - TDS 10-Pack
(AP-1)The HM Digital AquaPro AP-1 Water Quality Tester is a hand-held digital water quality tester which is used to test the amount of total dissolved solids (TDS) and other impurities in your water supply. Useful for both consumers and hobbyists, it can be used to test your drinking water, pools, spas,…
Our Price: $ 25.79Retail:$42.99Save:$17.20 (40%)In StockDiscontinued Product. Read Description for Options.View Details -
HM Digital AquaPro AP-2 Water Quality Tester - EC 12-Pack
(AP-2)The HM Digital AquaPro AP-2 Water Quality Tester is a hand-held digital water quality tester which is used to test the electrical conductivity (EC) of water. It also tests the temperature of water, and features Automatic Temperature Compensation (ATC). Useful for both consumers and hobbyists, it…
Our Price: $ 25.79Retail:$42.99Save:$17.20 (40%)In StockDiscontinued Product. Read Description for Options.View Details -
HM PH-200 Waterproof pH Meter
(PH-200)The HM PH-200 Waterproof pH Meter is a highly accurate, professional-grade digital pH and temperature meter. Incredibly accurate, the PH200 is perfect for both consumer and commercial use. The pH-200 Features: pH and Temperature Measurement Auto-ranging three point calibration with digital fine…
Our Price: $ 319.80Retail:$379.96Save:$60.16 (16%)In StockDiscontinued Product. Read Description for Options.View Details
