CHANTPOWER digital tire inflator with pressure gauge is compatible with ¼-inch air compressor outputs, has a locking chuck and comes with extras like a valve core tool and four-valve caps. This tire pressure gauge can measure from 0 to 200 psi and can also give readings in bar, kPa and kg/cm ^2 and there is a bleeder valve to let the air out to remedy overinflated tires. The backlit LCD screen turns itself off after 20 seconds of inactivity to save on battery life.