Fast and Accurate Readings - A large LCD screen with outstanding waterproof performance allows you to easily read the displayed value. After turning it on, simply immerse the electrode in the liquid and the readings will automatically appear on the large LCD screen. High Resolution - Measurement range: 0-14 pH, Accuracy: ±0.05 pH, High resolution up to 0.01 pH. You can get higher accuracy than other pH meters. Automatic Calibration: 2-point automatic calibration, automatic identification of standard liquid, 5 seconds to complete calibration. ATC Function: Don't worry about the impact of temperature on pH, the pH value automatically adjusts the temperature. To ensure more accurate readings. Wide Application: Ideal for pH testing in home and laboratory, including drinking water, electroplating liquid, boiler water, aquarium water, pool water, photographic washing liquid, well water, deep groundwater, aquaculture, food processing, etc.