... sensor with LED display, 4, 6 or 8 sensors available Features: 1) Auto-reverse detection 2) Dual-side LED indicator, ... and right sides 3) Three-color seven-stage LED indicator reminding barrier step by step 4) ... on bumper, just as original fitting 5) Digital LED indicator, right side or left side is shown 6 ... available to match the car body perfect 7) Full-weather design, un-affected by wind, ice, ...