5-in-1 pH Meter: This is a digital water quality tester kit with pH meter, TDS meter and EC/salinity/temperature test functions, which is fully functional and can meet your different needs. The VA backlit display can provide you with clear readings even at night. High : This water quality tester is highly accurate and reliable. pH resolution 0.01pH, accuracy ±0.05pH. TDS range 0-9999ppm, resolution 1ppm, accuracy ±2%. EC range 0-9999μS/cm, resolution 1μS/cm, accuracy ±2%. Salinity range 0.01%-10%, resolution 0.01, accuracy ±5%. Temperature range 0.1-60℃/32.1-140℉. Wide range of uses: This EDS meter can be used in various occasions. It can be used in swimming pools, laboratories, aquariums, hydroponics, spas, kitchens, drinking water, allowing you to enjoy a better and healthier life. Warm Tips: Before use, the probe should be soaked in water for two minutes to activate the probe before use or calibration. Put on the protective cover immediately after use to avoid the test electrode from being exposed to the air for a long time and drying out. If the electrode is dry, put the electrode in distilled water to keep it moist., Weight: 0.42108292042 Pounds, Manufacturer: Prterver