Feature: 100% brand new and high quality Quantity: 1 Electromagnetic sensor Automatically beeps to alert near-by objects Detects people, vehicles, small & high kerbs, garage doors, pillars, posts, walls, fences, barriers, skips, etc Improves parking safety Minimize bumper damage Indicates object distance with different beeping frequencies Easy and concealed \"inside bumper\"" installationSpecifications: Peel and Stick foil tape sensor for vehicles with non-metal bumper Electromagnetic field changes as object get closer to the bumper Wires to \""Reverse Lamp\"" (12 Volts DC) Size: Main Module: 5.8 x 3.4 x 1.8 cm Alarm Horn: Approx 4.8 x 3 x 1.6 cmPackage Content: 1x Main Module 1x Alarm Horn 1x Sensor Antenna 1x Set of tool 1x Instructions"