Digital PH Meter High Precision PH Tester with Backlight Display for Water Quality Testing in Laboratory and Other Applications Features: Quality Material: Made of high-quality ABS material for enhanced durability. Backlight Display: Easy-to-read screen that supports visibility in low-light conditions. High Precision: Measures with an accuracy of ±0.1pH and resolution of 0.01pH. Easy Operation: Simple to use with manual single-point calibration. Replaceable Electrode: Offers high cost performance with replaceable probe design. Wide Application: Suitable for measuring pH levels in drinking water, hydroponics, aquariums, swimming pools, and laboratories. Specifications: Power Supply: DC 9V (battery not included) Measurement Range: 0.00–14.00 pH Resolution: 0.01 pH Accuracy: ±0.1 pH Temperature Compensation: 0–50°C (32–122°F) Operating Environment: Temperature: 0–50°C (32–122°F) 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: The package includes only the items listed above. Other accessories are not included. Note: Lighting effects and display differences may cause slight variations between the color shown in the image and the actual product. Measurement error tolerance is ±1–3 cm.