... format,high compression ratio,clearly image,1-4 video input, 1 road composite video output. 2.Power-off protection function when accident ... 8. Communication interface:RS232,RJ45. 9. Video mode:record video when opening, timing video, alarm video, manual video. 10. Data storage:maximum support two ... , using on all kind of cars; current 12V/2A output. 12. Power saving, the machine normal working state of ...