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$17.95 MILWAUKEE INSTRUMENTS pH600-AQ pH Tester with 1 point manual ca – NISupply
The Triplett Model WQ120 waterproof (IP57) PH/TDS/Conductivity/Salinity Pen combines a flat surface pH electrode with a multi-range conductivity cell to measure pH, TDS, Conductivity, Salinity and Temperature. The flat surface electrode for pH can measure solids, semi-solids, and liquids. It simultaneously displays pH, TDS, Conductivity, or Salinity and Temperature and has an analog bargraph for viewing trends.
Triplett WQ120 - pH/Conductivity/TDS/Salinity Meter
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