This system detects vehicles behind and warns the follow driver by flashing brake light or other warning light, so that the follower could slow his vehicle and keep space, and would have prevented or mitigated the circumstances of the collisions. Like the BSA system, this system also can work as a reverse parking assist system. 1. Sound frequency is "closer and faster"
2. Distance and position display
3. Wide detection range: 8.0m
4. Reliable and stable
5. Especially for novice drivers.