Yes, our air pump, vacuum cleaner are their own research and development, design, production, all have appearance patents，please consult:sale@carsun.com

Yes, but because some countries and channels have authorized, please consult:sale@carsun.com

1. BSCI; 2.ISO9001

FCC, ROHS, CE, some products have KC,PSE，please consult:sale@carsun.com

According to the product description, the sensor accuracy is +1PSI. Customers are split on the accuracy, with some noting it matches their other gauges and others saying it is inaccurate.

Yes, it comes with additional nozzles adapters allowing to inflate tires with presta valves commonly used on road bikes.

According to customer reviews, the LED light is bright enough for nighttime use.

Once you’ve set it for use, after you’ve filled one tire, it keeps the setting until you completely unplug it. Set it once , fill all tires,storeaway. Set it again the next time you take it out to use