pH, EC, PPM Meters

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  1. -29%
    HM Digital Water Resistant Ec/TDS Meter w/ Temperature in C/F Hydrotester (Model COM-80)
  2. -20%
    HM Digital pH / TDS / EC / Temp meter
  3. -17%
    HM Digital pH 80 Meter
  4. -20%
    HM Digital Waterproof pH Meter
  5. -34%
    HM Digital Handheld TDS-3 Tester
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