Front and Rear arrow direction, VFD & HUD display
1.Alarm with multi-functional ultra-thin VFD display
2.Embeded "bi..bi.." buzzer (or human voice speaker)

3.Support safe HUD (head up display) mode:rotate the display face to car windshield and  choice HUD mode to read the distance from windshield   
4.2~8 pieces different color sensors is available
5.Different type waterproof sensor
6.Sensor could be with waterproof plug, it's convenient to replace sensor
7.Easy installation
8.Alarm volume: 75~90 dB
9.Operation temperature available: -35~+75 degrees