Automotive
Why a Tire Pressure Gauge Still Matters
A tire-pressure monitoring system is useful, but a handheld gauge still gives you a direct measurement when you are adjusting pressure, checking a slow leak, or comparing tires. It is also useful on bicycles, trailers, spare tires, and older vehicles that may not provide individual pressure readings.
The important number is the vehicle manufacturer’s recommended cold tire pressure, normally listed on the door-jamb placard, rather than the maximum pressure molded into the tire sidewall.