Auto Calibration: PH has an automatic temperature compensation function that adapts to water temperature and water quality to provide pH readings almost instantly. Accurate measurement: Measuring range: 0.0-14.0 PH . Resolution: 0.1pH; Accuracy: ±0.1pH. With LCD display, reliable and quick reading. Easy to use: Simply remove the protective cap and immerse the electrode of the pH meter in the solution. Turn on the pH meter with the ON/OFF switch to measure. Shake gently until the displayed level is stable and read the displayed levels. Widely used: Ideal for home and laboratory applications such as beverage, drinking water, swimming pool, spa, aquarium, hydroponics, etc. p>