ePathChinaPortable Super Flow 12-Volt 140PSI Auto Tire Inflator / Car Air Compressor Maximum inflatable pressure can be up to 140PSI (it is 30PSI to 40PSI for general tyre). Use the car cigarette lighter power for fast filling. The barometer can measure and display the pressure accurately. Small volume, beautiful design, easy to carry. This item can commonly pump the tire to normal pressure in 2 to 3 minutes.