General description The AlwaysH Swimming Pool Salinity Tester is a versatile 5 in 1 digital meter designed for testing salt levels, pH, TDS, EC, and temperature in swimming pools, hot tubs, and swim spas. It provides accurate readings to ensure optimal water quality and efficiency of salt chlorinators. Technical specifications Salt Range: 0~9990 ppm / 10~100 ppm pH Range: 0.00~14.00 Usage Immerse the tester in the pool water to obtain readings. The LCD screen displays measurement results in seconds. Recommended pH level for pools: between 7.2 and 7.8.