IP65 Waterproof: IP65 waterproof and moisture-proof design, even if dropped into the water or solution as soon as possible to salvage can be normal measurement use Drinking Weakly Alkaline Water Testing: Garbage disposal, untreated septic tanks, agricultural irrigation, industrial pollution can not be discharged, etc. are very harmful to the water quality impact, and a high- PH meter can be solved Automatic Temperature Compensation: The temperature of the instrument have a certain impact on the pH measurement, and the impact be even greater if the requirements are high, so the temperature compensation function is very necessary Lithium Direct Charging: USB lithium direct charging, support a variety of charging methods, Manufacturer: Akfldms