Feature:1. Support backlight display, visual display of measured values, and can be viewed normally in dark environments.2. The measurement range of this product is 0.0014.00PH, the accuracy is 0.1PH, and the resolution is 0.01PH.3. Portable PH meter, made of high quality ABS material, durable to use, wear resistant and corrosion resistant.4. Support temperature compensation 050, high measurement accuracy, easy operation and long service life.5. It is widely used in swimming pools, aquaculture, drinking water, irrigation, laboratories and other occasion.Specification:Item Type: PH MeterMaterial: ABSWeight: Approx. 372g / 13.1ozRange: 0.00-14.00PHResolution: 0.01PHAccuracy: 0.1PHTemperature Compensation: 0-50Battery: Built In 1 Set of Ni-MH Battery 4.8V 110mAH (Built In Battery)Adapter: US Standard 110V DC6VCharging Time: 4 HoursWorking Temperature: 0-50Relative Humidity (RH): <85%Calibration Method: Manual Single Point CalibrationProduct Size: Approx. 128x68x25mm / 5.0x2.7x1.0inUses: Suitable for swimming pools, aquaculture, drinking water, irrigation, laboratories, etc..Package List:1 x Tester1 x Electrode1 x Adapter1 x Screwdriver1 x ManualNote:1. Please allow 0‑1 inch error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.