Specification:
Measure range: 3~150PSI, Measure pricision: ±1PSI
Resolution:0.5PSI, Working temperature: -20~60'C
Push and hold the nozzle on the gauge aganiest the valve stem unitl the pressure reading is displayed and locked.
If your tire pressure is 15% lower or 25% higher than the preseted pressure, warning red light will flash.

Description:
A.Nozzle: Reads tire pressure
B.Unit button: Turn on gauge/selects units/holds for 5 seconds to turn off gauge
C.LCD display: Displays selections/readings/warning red flashlight(Pressure unit:PSI|BAR|KPA|KG/c㎡)
D.UP button: Increase setting options/holads for 3 seceonds to preset a target pressure
E.Down button: Decrease setting options/holds for 3 seconds to preset a target pressure

Notice:
1.Push and hold the nozzle on the gauge aganiest the valve stem unitl the pressure reading is displayed and locked.
2.If your tire pressure is 15% lower or 25% higher than the preseted pressure, warning red light will flash.