... 1. LED display, OEM sensor 2. Any display, control unit connectable 3. Sensor flat to bump, like original Parking ... - "BiBi" audible warning buzzer in 3 steps- Volume switch control- Detachable sensor with waterproof socket connector- Directional indicator of left ... rain-proof & all weather design- Any display, any control unit connectable- Self-diagnosis, learning function for spare tire/tow ...