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The HI9813-6 is an economical, water resistant, portable meter that measures pH, conductivity (EC), total dissolved solids (TDS) and temperature with
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Acheter Professional & Power-saving pH-007T Pen-Type pH Meter High Precision with Automatic Temperature
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Handheld 4 in 1 PH EC TDS Temperature Meter Digital Water Quality Monitor Tester TDS PH Meter for Drinking Water Pools Aquariums: : Industrial & Scientific
Acheter Ph-mètre numérique Portable 0.00-14.0, testeur de PH TDS EC, thermomètre 0-9999us/cm 0-9999ppm
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Digital PH/TDS/EC Meter Tester Thermometer Pen Water Purity PPM Range 0-9999 Filter Hydroponic for Aquarium Pool Water Monitor - AliExpress
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Digital PH Meter + TDS Tester Aquarium Pool Hydroponic Water Monitor 0-9999 PPM
Digital PH Meter + TDS Tester Aquarium Pool Hydroponic Water Monitor 0-9999 PPM
