How to Read the Tire Pressure Gauge in a Car?

[DelJayla]

Automotive tire pressure gauges display the pressure in the inner black circle in BAR (indicating atmospheric pressure) or Pa (Pascal). Below is an introduction to tire pressure gauges: 1. Function of tire pressure gauges: A tire pressure gauge or automotive tire pressure gauge is a special type of pressure gauge designed specifically for measuring the pressure inside the tires of cars, trucks, bicycles, and other vehicles. Tire pressure gauges utilize pressure sensing technology, offering high measurement accuracy and a long service life. 2. Classification of tire pressure gauges: Pointer-type pressure gauges, where the elastic sensitive element inside the gauge undergoes elastic deformation under pressure, and the mechanical transmission amplification mechanism rotates the pointer to indicate the pressure value on the dial. The gauge also includes a zero-return device inside, which can keep the pointer at the indicated pressure value. Scale-type pressure gauges, where a piston with a scale moves under pressure and remains stable at a certain position, indicating the pressure value through the distance moved by the scale and the scale's markings.