【Easy to Use】When testing liquids, you only need to look at the numbers on the meter's digital display and you can get the TDS PH EC water temperature value in 5 seconds without using test strips to see which is more efficient and faster. TDS and EC testers measure total dissolved solids (TDS), electrical conductivity (EC), and temperature.【Automatic Humanized Design】Automatic temperature compensation automatically accounts for temperature changes (0~80 degrees). The PH meter does not need to be adjusted with a screwdriver. Simply use the automatic calibration button to complete the calibration. It comes with a buffer powder. [High Accuracy] The digital range of the PH meter is from 0.00 to 14.00 (PH), while the digital range of EC and TDS digital meters is 0 up to 9990ppm. pH resolution 0.01 pH, accuracy ± 0.05 pH. TDS: 0 ~ 9990 ppm, conductivity: 0 ~ 9990 us/cm, accuracy: ± 2%. [Wide Application] Ideal water quality tester for drinking water, aquarium, fishing, swimming pool, reverse osmosis system, spa or hydroponics, student lab, tap water and all other liquids.