At present, most car trunks on the market need to be opened by a key or a manual button.When the owner holds a large item in the trunk, he must place the item on the ground and then open the trunk by hand, which is inconvenient to operate. This product solves the above problems, and is installed inside the rear of the car, and emits microwaves downward for detection.If the sensor detects an effective kick in the sensing area, it outputs a corresponding level signal according to the signal strength. Control the opening of the tail box. Normal mode: approach the foot of the bumper sensing area and then leave the bumper sensing area. When this action is completed, a trigger signal be generated. Abnormal patterns: stairs, stones, branches, rough roads, plastic bottles, car wash, etc., no trigger signal is generated Universally used in all cars Installation Notes: 1. Find the proper position on the rear guard of the vehicle. 2. Wipe the installation position of the sensor. 3. Peel off the