Yieryi Digital Hydrogen Water Tester PH/ORP/Temp/H2 Water ppb ppm Meter with ATC 0.01 Resolution

SPECIFICATIONSBattery: 3*LR44(NOT include)Brand Name: yieryiCertification: CE,FCCDisplay Type: DIGITALElectrode: ReplaceableFunction 1: PH TesterFunction 2: ORP TesterFunction 3: H2 TesterFunction 4: Water Temprature TesterModel Number: ppm Tester YY-400BOrigin: Mainland ChinaWith Backlight Or Not: YES Yieryi Digital PH/ORP/Temp/H2 Water ppb ppm Meter with ATC 0.01 Resolution High Accuracy Hydrogen Tester for Drinking Water Pool PH ORP Meter Features: 4-in-1 pH Meter: Yieryi pH tester measures pH, ORP, H2 and temperature simultaneously, providing you with comprehensive information on water quality. Perfect for measuring swimming pools, SPA, Hot Tub Water, aquariums, fish tank water, hydroponics, drinking water, home wine/beer/juice brewing, well water, koi pond water, RO system, aquaculture, etc.. And it can be used for a long time, relatively frequent purchase of test paper or test reagent, can save your money. Accurate H2 Water Tester: The H2 tester provides two test modes (ppb/