[5 in 1 Water Quality Test] The pH meter features a 5 in 1 function that measures pH, TDS, EC, salinity, and temperature simultaneously with high precision. Provides comprehensive water quality analysis to help maintain optimal water conditions. [Precise Measurement] Equipped with a high-quality titanium alloy probe and Automatic Temperature Compensation (ATC) to ensure accurate readings across varying temperatures. [Auto Power Off Function] Automatically powers down after 5 minutes of inactivity to conserve battery life. [IP67 Waterproof Rating] Rated IP67 for protection against dust and short-term water immersion, ensuring durability in wet environments. [Wide Range of Uses] Suitable for testing water in swimming pools, aquariums, spas, hydroponic systems, laboratories, and drinking water applications.