This upgraded 7 inch car monitor screen is mainly used for backup parking camera monitoring system or used as a backup display screen for DVD. It can compatible for AHD cameras, NTSC and PAL cameras, with RCA connector. If you are looking for much clear picture, you can use this AHD car monitor together with AHD cameras. If you connect the green trigger wire to rear light of car/truck, then the monitor will cut to rear view camera automatically while you're backing the vehicle, and change back to the original scene after finishing parking. 
 Kindly note:Red and Black wire is for power supply, green wire is for trigger wire, and 2 yellow interfaces (a male & a female) are for video inputs, we also offer you another female-to-female RCA coupler to help you connect 2 cameras or extend wiring.
 Threre is no audio input or AV output supported, and If there is no signal, a blue screen automatically appears priority after parking. 

Specifications:
Screen size:7 inch
Display: Color TFT LCD Screen
Shell Material: durable hard plastic
Screen resolution: 1024x 600 pixels 
Contrast: 450:1
Brightness: 350cd/m2
Voltage: DC 12V or 24V
Video system: AHD/PAL / NTSC
Screen ratio: 16: 9 (not adjustable)
Product size 1: 174x114x19mm (without shell)
Product size 2: 193x134x25mm(with shell)
Operating mode: key operation and remote control
Product Gross Weight: about 700g
With adjustable brightness and contrast

  Package included:
1x 7 inch TFT LCD Color Car monitor(with a cable)
1x Standing bracket
1x Mounting shell
1xRCA Coupler(female to female)
1x Sticker
1xEnglish User Manual