Portable Electric Car Air Compressor Pump for Car and Bike Tyre

The car air pump only works with DC 12V power source.
* To use the car air pump, start the engine before plugging in the power cord.
* The car air pump is not applicable to LT, HT and Truck Tires.
* After the car air pump is working for 8 minutes, make it turn off for 10 minutes.
* Three meters long power cord , can be easily connected to the front and rear tires.
* The default value of this air pump inflation default is 300PSI, if you want to set the default value adjustable button (+ The key is up, the -key is down.)
* After setting the default value ,wait for 3 seconds , exit he preset mode, and detect the current air pressure in real time ,Air Pressure Pump