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  • Basic Handheld TDS Tester

    Basic Handheld TDS Tester

    The ZT-2 is the first of HM Digital's new HMD line. It's a low-cost TDS meter that's perfect for those with multiple systems. Though inexpensive, this meter does not skimp on quality, features and des…

    $25.45
  • Dual In-Line TDS Meter w/T-Fittings

    Dual In-Line TDS Meter w/T-Fittings

    Displays TDS levels of the feed water and product water with in and out electrode probes.…

    $51.82
  • Triple Inline TDS Monitor

    Triple Inline TDS Monitor

    Three sensor TDS monitor that is ideal for checking TDS levels at 3 points, such as with DI/RO (deionization / reverse osmosis), or multiple points in an RO system, and more.…

    $72.69
  • Waterproof EC / TDS / Temperature Combo Meter

    Waterproof EC / TDS / Temperature Combo Meter

    The only handheld TDS meter / EC meter with full scale digital calibration. A water tester that is perfect for both consumer or commercial use. Ideal for all water quality testing, water purification …

    $125.83
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