Features: - Material quality: Made of quality ABS material, more durable. - Backlight display: Easy to read and does not affect the use in the dark. - High Accuracy: ±0.1pH accuracy, more accurate. - Easy operation: more convenient. - replaceable electrode : high cost performance. - Wide application: Suitable for measuring drinking water, hydroponics, aquarium, swimming pool, laboratory, etc. Features: Material: ABS White color Power supply: DC 9V (not included) Measurement range: 0.00-14.00pH Resolution: 0.01pH Accuracy: ±0.1pH Temperature compensation: 0-50°C (32-122°F) Operating environment: Temperature: 0-50°C (32-122°F) Relative humidity: Calibration mode: single point calibration manual Item size: approx. 15 * 6.5 * 2.5cm / 5.91 * 2.56 * 0.98in Item weight: approx. 125g / 4.41oz Package size: approx. 21 * 10.5 * 5cm / 8.27 * 4.13 * 1.97in Package weight: approx. 255g / 8.99oz Note: Please read the User Manual before use. Packing List: 1 * Digital tester 1 * screwdriver 1 *