* W2-P703A 4 Sensors/Control Box/Buzzer
* W2-P703B 4 Sensors/Control Box/Buzzer/Camera
* W2-P703C 4 Sensors/Control Box/Buzzer/Camera/Monitor

Front camera starts to work upon ignition of engine.
When reverse gear is released from engagement,monitor
display rear video image for 20s then swith to front video image.
* System activated automatically when reverse gear is engaged.
* Detection distance:0.1m-3.0m
* Display distance:0.35m-3.0m
* Numeric distance indication on TFT-LCD monitor
* Obstacle direction indication