3-in-1 pH Meter. PH meter has a three-in-one function, which can accurately measure pH, TDS and temperature values with high precision at the same time.With high sensitive glass probe, you can get a full measurement range of 0-14pH, 0.01 pH resolution. Press the automatic calibration button, the water pH meter will automatically recognize the calibration, easy and convenient.High-accuracy algorithm chip and electrode of our digital water ph tester accurate and fast response. Hydroponic ph meter features backlit LCD, 't worry about seeing the displayed value in low light,Auto temp compensation (ATC) ensures accuracy in temperatures (32Fahrenheit~140Fahrenheit), It can solve the possible error perfectly caused by the change of liquid temperatureand portable size allows you to easily carry pH meter in your pocket and take measurements anywhere.The pH tester is perfect for daily use,The instrument is perfect for drinking water, daily household, hydroponics, beer brewing, swimming pool, laboratory, food processing etc.Colour:As shownMaterial:plasticPackage Contents:1 x Water Quality TesterOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.