HDMirrorMonitor8 Sensors Dual Core Parking Reverse Radar System with 2 Camera (Front +Rear). Car Reversing image and distance can show ontheMonitor Dual Core CPU HDMirror monitor Step-up buzzer alarm Detective distance from 0.3-2.1m Can be connected with camera,rearview cameraand display together,distance will showon the monitor and alarmsound will remind you the distance at a difference degree 4*Sensor cable lenght:2.5m 4*Sensor cable lenght:6m Sensor diameter:22mm When you reverse, the rear view image and distance will show on the monitor automatically. When you brake, the front camera and distance will show on the monitor automatically. Car DigitalMirror Monitor Item color: Black Item type: Car Monitors Screen size: 4.3 inch TFT 16:9 screen Display component: Color TFT LCD display Resolution: 800W * RGB * 480H Video system: PAL/NTSC compatible Power supply: DC 12V Rated power consumption: 3W (Max) Operation temperature: -40~+60Celsius degree Storage temperature: -40~+60Celsius degree Video signal: 1 Vp-p 75 degree HD CCDCar Camera With8 led Lights Image sensor:OV7950/PC1030(Distance reference marking display) Resolution:680TV line Lens angle: 170 degree TV System: NTSC(Default)/PAL S/N Ratio:Better than 48dB Power:12V DC(+/-10%) Waterproof grade:IP68 Waterproof body construction with wide view angle Front camera is normal image without parking guide and rear view camera is mirror image with parking guide