Digital PH Meter High Precision PH Tester with Backlight Display for Water Quality Testing in Laboratory, Drinking Water, Hydroponics, Aquarium, Swimming Pool Features: - Quality Material: Made of durable ABS material - Backlight Display: Easy to read in low-light conditions - High Precision: Accuracy up to 0.1pH with 0.01pH resolution - Easy Operation: Simple to use with manual single-point calibration - Replaceable Electrode: Cost-effective design - Wide Application: Suitable for drinking water, hydroponics, aquariums, swimming pools, and laboratories Specifications: - Power Supply: DC 9V (battery not included) - Measurement Range: 0.0014.00 pH - Resolution: 0.01 pH - Accuracy: 0.1 pH - Temperature Compensation: 050C (32122F) - Operating Environment: - Temperature: 050C (32122F) - Relative Humidity: Less than 85% - Calibration Mode: Manual single-point calibration - Material: Plastic - Color: As shown in picture Package Contents: - 1 x Digital PH Meter Note: Other items not included. Slight color variations may occur due to lighting and screen display differences. Measurement error is +/- 1-3cm.