Align the pressure tap with the tire, and then squeeze it hard to keep the air tight. The tire pressure gauge will automatically display the reading. | Measure tire pressure, gently press the power button, four units intelligent switch: 0-150psi, 0-10bar, 0-10kg / cm² , 0-1000kpa. | Direct repeated measurement, no need to shut down to zero, standby 30 seconds automatically shut down or long press shutdown. | Used for measurement of cars, bicycles, balls, rubber boats and other products. It has a wide range of applications and gives you a safe and healthy journey. | Please contact us if you have any questions, we are always here to satisfy all of you.