Features: Quality Material: Made of quality ABS material, more durable.Backlight Display: Easy to read and does not affect the use in the dark.High Precision: Accurate to 0.1pH, more precise.Easy Operation: More Convenient. Replaceable Electrode: High cost performance.Wide Application: Suitable for the measuring of drinking water, hydroponics, aquarium, swimming pool, laboratory, etc.Specifications:Power Supply: DC 9V (Not Included)Measurement Range: 0.00-14.00pHResolution: 0.01pHAccuracy: 0.1pHTemperature Compensation: 0-50(32-122)Operating Environment:Temperature: 0-50(32-122)Relative Humidity: Less than 85%Calibration Mode: Manual single-point calibrationMaterial: plasticcolour: As shownPackage Contents:1 x Digital PH MeterOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.