This lightweight aluminum tool is perfect for inflating ATV, bicycle, car, motorcycle, truck, tractor, and trailer tires. It is crush resistant and even withstands being run over by a tractor trailer. A battery operated digital gauge and a built-in relief value help reduce pressure in over-inflated tires. The tire inflation tool swivels a full 360 and has a dual head air chuck for easy filling of tires. You can check your tire pressure without a compressor; simply attach the chuck to your tire for a digital reading from 0-150 psi. The LED display shows PSI, Kpa, Bar, and Kgf/cm2 so you can get an accurate reading in multiple international air pressure measurements. The lighted display screen automatically shuts off after 1 minute of inactivity to preserve battery life.