What do you think of barometer?

1, need to know what is the normal tire pressure value of the car, as a reference for inspection;

2. You can know this value by looking at the user manual or tire pressure warning board. Generally, the tire pressure warning sign is located at the door frame of the driver's door or inside the fuel tank door, which can be seen after opening the door or fuel tank door.

3. Compare the degree of barometer with the standard air pressure. How to use the tire barometer: aim the gap at the measuring end of the tire barometer at the tire valve and press it tightly. At this time, the pointer of the tire barometer deflects, and its indicated value is the inflation pressure of the tire, or the benchmark of the tire barometer is pushed out under the action of air pressure, and the value displayed on the benchmark is the inflation pressure of the tire.