a)car parking sensor system with 8 sensors b)alarm by three-step bibi ... Left and right obstacle indicator Main features: 1, Compatible with any Car, Bus, Truck2, Automatic Detecting Obstacles once ... Super-Wide Detective Angle Prevents Side Impact5, LCD Indicator shows Two Distances: Rear Left, Rear Right6, LCD Indicator: Ultra ... attend hongkong electronic fair: led parking sensor with 8 sensors