0.01 high-precision PH meter: handheld PH meter has built-in high-sensitivity glass electrodes, which can quickly sense and test the pH in the liquid. The electronic screen design helps to quickly read the data. PH measurement range: 0~14PH, accuracy: +/- 0.01 PH.Simple calibration operation: Provide 3 sets of PH calibration powder, easy to calibrate, provide pH 4.00, 6.86 and 9.18 PH calibration powder is more accurate than test paper. The large backlit LCD display is easy to read. The hand-held pen style makes it easy to put in a pocket or bag, and can be carried anywhere.Automatic temperature compensation:The built-in (ATC) automatic temperature compensation of the pH meter makes it possible to accurately determine the pH value of the sample at any temperature, so there is no need to worry about the temperature of the test solution. 0c-60C (32f-176F) range.Widely used: very suitable for home or laboratory use, suitable for testing the pH balance of drinking water, swimming pools, aquariums, Ro systems, spas or hydroponics; suitable for a wide range of applications.New TDS function: TDS: 0~9990 ppm, accuracy: +/- 2%. The 3-in-1 TDS meter can measure TDS, EC and liquid temperature in degrees Fahrenheit or Celsius. TDS tests the quality of the water purifier through the backlight function, which is convenient for you to read. TDS has an automatic temperature compensation function, the measurement data is not affected by the water temperature, but is affected by the air temperature.Colour: green + whiteMaterial: ABSPackage Contents:1 x ph meter1 x test MeterOnly the above package content, other products are not included.Note: Light shooting 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.