Type:Pointer Dial Portable 12V Car Air Compressor Electric Tire Pump Auto 150 PSI Feature: 1.High-accuracy Pressure Detection: The display screen is pointer dial type. Maximum tire pressure is 150 PSI. The dial shows two pressure units (KPa and PSI). The pressure gauge is easy to read. It detects the pressure of inflatable objects with high accuracy. 2.Portable Tire Pump: This car air compressor comes with a carry bag, which is portable and handy. It can save you a trip to a filling station given that a roadside tire fault happens. .