Detailed Product Description 1.Monitor the blind spot at real time 2.Help you see through fog, darkness,rain or snow 3.Mercedes OEM sensor appearance Function: When the car goes forward, this system monitors and indicates the other vehicle in the blind zone by colored LED. If you want to change lanes and something is located in the blind zone, the system will remind the driver with a warning tone. Specifications: 1. Color LED display in distance 2. Directions indicator: left and right 3. Volume adjustable 4. Metric vs Imperial display 5. Sensitivity adjustable 6. BSA function can be truned on and off Technical Data: Rated Voltage 12V Operating Voltage Range 10-16V Rated Current 200mA Detecting Area 4m*3m per side Working Temperature -35-85°c