Insert the cigarette lighter plug into the DC 12V jack in the car, and then start the car.
2. Three-meter long power cord for easy connection to front and rear tires.
3. Screw the inflation nozzle onto the tire that requires ventilation.
4. Button description: R key is a unit conversion key;-key is a minus sign; + key is a plus sign key, any press-or + key to enter the preset mode.
5. If you want to set the adjustable button with default value, the default value of this pump inflation is 300PSI (+ key is on,-key is off).
6. After setting the default value, wait 3 seconds, leave the preset mode, and detect the current air pressure in real time.
7. Suction the set value upward and stop the pump automatically.
8. When re-inhaling, you need to turn off the switch and then turn it on again to start absorbing water again.