Accugage Air Pressure Tire Gauge - 1-15 PSI (MISC) AIR BLEEDER VALVE - Comes with a built-in air bleeder valve to reduce pressure pressure in overinflated tires. SWIVEL ANGLE CHUCK - Includes a 360 degree swivel angle chuck which allows for access to the tire valve from any hard-to-reach angle. ACCURATE READINGS - Take accurate tire pressure reading which will stay locked on the meter until the pressure reset button is pushed. MAINTAIN PROPER TIRE PRESSURE - Tire pressure is extremely important to maintain the life of your car. Make tires last longer, get better fuel economy, and stay safe with reduced risk of tire failure. LOW-PRESSURE READER - Pressure gauge gives super accurate readings from 1-15 psi down to a quarter of a pound measures.