5-in-1 Water Tester: Our water tester is designed in a 5-in-1 format. It can measure PH, EC, TDS, SALT and TEMP simultaneously with high accuracy. Comprehensive water quality measurement to ensure healthy water quality. Speed measurement: 5 seconds to know the water quality, accuracy and speed. Reliable quality, versatile and simple, it is your best choice. Reliable and fast reading. Versatile: Our digital tester is very small, with a protective cover, not easy to damage and easy to use. Ideal for drinking water, daily household use, hydroponics, lab teaching, and more. Auto Calibration: Temperature affects reading levels, and automatic temperature compensation of our pH meters ensures you get the best reading possible.