8 In 1 PH Meter TDS/EC/Salt/Temp Water Quality Monitor Tester Pen Pool Aquarium

(Salinity(0-20%)、ORP(±1999MV). TDS（0-200,000ppm). Why do you choose the 8-in-1 water quality tester？. EC(0-200,000us/cm). Short press MODE/CAL, select PH/EC/TDS/SALT mode;. The health issues of water use cannot be ignored, and different qualities of water have different impacts on the human body.

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