Feature 1Support backlight display, visual display of measured values, and can be viewed normally in dark environments. 2The measurement range of this product is 0.0014.00PH, the accuracy is 0.1PH, and the resolution is 0.01PH. 3Portable PH meter, made of high quality ABS material, durable to use, wear resistant and corrosion resistant. 4Support temperature compensation 050, high measurement accuracy, easy operation and long service life. 5It is widely used in swimming pools, aquaculture, drinking water, irrigation, laboratories and other occasion.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. .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Tester1 x Electrode1 x Adapter1 x Screwdriver1 x ManualNote1. 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.