High Precision pH Meter - It can measure pH and temperature with high precision at the same time. Test solution/water pH and temperature with data hold function. Automatic Calibration - The digital pH meter is calibrated at the factory, but will need to be recalibrated after a long period of inactivity or frequent use. With ATC function (automatic temperature compensation), and IP65 fully waterproof design. Accurate Testing - The pH meter adopts a high-sensitivity replaceable pH sensor probe, the pH meter with a measuring range of 0-14.0 can read accurate pH values quickly and easily, and can perform accurate testing within the range of ±0.05 pH. Mini Size - Lightweight and portable size allows you to easily carry it in your pocket and take measurements anywhere. Whether you take it to the pool, travel, beach, or camp, a pH meter can help you test it. WIDELY USE - Great for home or laboratory use. The digital pH meter can be used to test the pH balance of drinking water, swimming pools, aquariums, bathtubs, spas and any other liquid, or anywhere you need to test the pH level and get accurate data.