What does 'bar' mean in tire pressure display?

[StMaggie]

Tire pressure bar is the imperial pressure unit 'bar', which is one of the units for measuring tire pressure. The specific introduction is as follows: 1. Tire pressure gauge: Tire pressure gauges can generally be divided into three types, namely pointer-type tire pressure gauges, digital tire pressure gauges, and alarm-type tire pressure gauges. The latter two can directly display tire pressure through numerical values or alarms, and their principles are relatively simple. The more complex one is the pointer-type tire pressure gauge, which requires reading the tire pressure through the value indicated by the pointer on the dial. 2. The importance of understanding the pressure gauge: Learning to read the pressure gauge can ensure the correctness of tire inflation. When using a tire pressure gauge, the air nozzle connector should be pressed tightly against the tire valve to secure the valve core; then, refer to the pressure marking on the side of the tire. Once the required tire pressure value is known, the tire can be inflated.