Ambrane Tyre Inflator inflates a standard tyre in 3-5 minutes, having maximum pressure of 150PSI. Simply set the pressure, and the auto shut-off function will turn off the air compressor when the desired pressure is reached. As a result, you do not have to be concerned about over-inflating your vehicle’s tyres. The digital display provides an accurate reading, and the compact design makes it ideal for long rides and work trips.