PowRyte Pistol Grip Tire Inflator with Dial Gauge, Air Inflator with Locking Air Chuck -100 PSI Air inflation gun, air chuck and tire gauge are all combined in one for easy to use; rugged die cast aluminum construction is corrosion-resistant Air releasing switch allows for air discharge when the pressure is too high Dial air inflator gauge measures from 0-100 psi in a 2 psi increment Solid brass clip on design enables hand-free use This tire inflator with Gauge has 12-inch flexible Hose and 1/4-inch industrial quick coupler Plug Measuring Range: 10 - 100 PSI Air Inlet Size: 1/4&#034; Industrial Plug