pH meter, also called acidity meter, is often used to measure and detect the pH of liquid media, and is currently widely used in industries, agriculture, and environmental protection. If the measured data is inaccurate, it will cause serious consequences to the project or the environment, so the correct use of the pH meter is extremely important. When using PH timing, we need to strictly follow the correct method and sequence in order to obtain more accurate measurement data. So let's take a look at the correct steps and working principle of using a pH meter.