Multifunctional 7-in-1 Tester: The PH Meter is a versatile pH meter that combines 7 functions - pH, H2, ORP, TDS, EC, SALT, and Temp. 0.01 resolution, all-round monitor water quality. Whether you're testing drinking water, aquarium water, or even brewing liquids, this all-in-one tool ensures accurate results. High Precision Electrodes: Equipped with high precision electrodes, the pH tester provides reliable and accurate measurements. Whether you're testing the pH of your coffee, home - brewed beverages, or aquarium water, you'll get precise data. ATC Temperature Compensation:The built - in ATC 0-60 temperature compensation function adjusts readings according to the liquid's temperature. This feature guarantees consistent and accurate results in different environments.The pH meter is calibrated at the factory and can be used immediately after it is turned on. Suitable for Multiple Scenarios:Ideal for measuring the quality of drinking water, aquarium water, pool water, saltwater, and even liquids used in home brewing. Whether you're a coffee lover, a home brewer, or someone concerned about water quality at home, this PH meter meets your needs. Calibration Liquids: ensuring your device delivers precise and reliable measurements every time. The high-accuracy electrode and ATC temperature compensation provide error-free readings, even in fluctuating conditions.