How to Read a Tire Pressure Monitoring Gauge?
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Tire pressure gauges are generally divided into three types: analog (dial) tire pressure gauges, digital tire pressure gauges, and alert-style tire pressure gauges. The latter two can indicate tire pressure through numerical values or alerts, and their principles are relatively straightforward. The most commonly seen is the analog tire pressure gauge, which connects to the tire's valve stem to check the car's tire pressure, and then the pressure is read by observing the needle on the dial. Here are some relevant details: 1. Tire pressure is akin to the lifeblood of a tire—both excessively high and low pressures can shorten the tire's lifespan and even lead to a blowout. 2. Tire pressure checks must be performed when the tires are cold, as high temperatures can increase the pressure. If measuring pressure in a hot tire, it's best to subtract approximately 0.2 to obtain the cold inflation pressure.