Bluelab OnePenThis 3 in 1 tool measures pH, Conductivity (EC PPM), and Temperature, optimising nutrient uptake. Connect to the Edenic app via Bluetooth for real time sharing, updates, and comprehensive data management. Replaceable probe and probe health indicator Ergonomic build and high contrast backlit display Precise readings with 0. 01 pH resolution Simultaneous pH and conductivity (EC) screen readings Measure conductivity in EC, CF, PPM 500 (TDS) or PPM 700
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