Safety Door / Car accessories

It is very common for people to open the door of car without checking the condition outside the car. And the accidents are always occurred inadvertently in this case. This safety door for the car can automatically detect whether other vehicles at a safe distance. If other vehicles are in a non-secure distance, the red warning light on the car handle will be bright when you want to get out of the car, and the door cannot be open. In other word, the door can only be open with a safety outside environment.