... 5~2.5m 2.4 sensor parking sensor,led sensor 3.high quality,warranty 1 year CE E4 LED parking sensor systemDisplay Size: 78 * ... safety zone, caution zone and danger zone·Display mode: LED lights in 3 colors of green, ... safety zone, caution zone and danger zone·Display mode: LED lights in 3 colors of green, ... Obstacle orientation indication; Digital distance display Car parking sensor system with all car