Tire Inflator with Electronic Digital Display Pressure Gauge Tire Pistol 220 PSI Deflation Feature: Accurate Pressure Gauge: You can check the tire pressure through the digital display. The built-in pressure gauge is high-precision. Inflation range is 0-220psi. Blow-off Valve: This Tire Pistol features a blow-off valve. Touch the button, and you can deflate the tire when the tire is overfilled or in case of extreme weather conditions. Easy Operation: Press down the buckle, connect the hose to the air valve of the tire and release the button. Specification: Type: Tire Inflator Color: Black Max Capacity: 220PSI Material: Zinc Alloy Measure Unit: PSI .