... assist backup sensor: 1. LED display, OEM sensor 2. Any display & control unit connected 3. ... backup sensor:Product Feature:- Three-color digital LED display with buzzer built-in, OEM sensor- ... Heavy rain-proof & all weather design- Any display, any control unit connectable- Self-diagnosis, learning ... Working temperature: -30ºC ~ +80ºC LED display parking assist backup sensor, original fitted (BE-750C ...