3 In 1 Multifunctional Measurement The pH meter has a threeinone function that can measure PH, TDS and temperature with high precision. You only need to remove the protective cap and immerse the pH meter electrode into the solution.Backlit LCD design Dont worry about seeing the displayed value when there is insufficient light. Our digital ph tester is equipped with a highquality titanium alloy probe and glass electrode, which can achieve fast and convenient testing. Insert the probe into the liquid to be tested, wait for 1 second and read.High Accuracy Comes with calibration powder pH 4.00, pH 6.86, pH 9.18. Press the auto calibration button, the water pH meter will automatically recognize the calibration, simple and convenient. The detailed manual included will show you how to get the best accurate and stable reading.Waterproof and dustproof IP67 high waterproof and dustproof level can protect our test instruments well. The liquid temperature may affect the reading levels, but our digital pH water quality tester can accurately measure the pH value of the sample in the temperature range of 0C60C32140, and the PH tester can automatically identify the calibration solutions to read the digital value in an instant.material plasticColor shownPackage contents1Water Quality Monitor Tester3Buffer powderOnly the above package contents, other products are not included.Note Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is13 cm.