5 in 1 Water Quality Tester: The pH meter is equipped with 5 in 1 function which can measure PH, TDS, EC, salinity and temperature at the same time with a great precision. Omnidirectional water quality measurement to ensure the health of water quality. Precise measurement: To achieve high accuracy, it is equipped with a high-grade titanium alloy probe. quality and reliable automatic temperature compensation (ATC), which guarantees precise measurement at different temperatures can ensure. When the reading is stable, long press the HOLD/TEMP button to lock the measured value and pull to see, which is really easy. Auto-off function and large screen: the PH-tester has a backlight LCD display, which allows you to clearly see the measurement in any case. The auto shut-off feature turns the device off after 5 minutes of inactivity to save energy. Uses a fully transparent liquid crystal (LCD) to display 4-digit values and their corresponding physical units. IP67 Waterproof: IP67 is an international rating for protection against water and dust. Protection against dust ingress, short term submersion. Wide range of uses: This water quality detector is ideal for testing water, swimming pools, aquariums, spas, hydroponics, laboratory and drinking water, etc.