1.Accident is often the twinkling of an eye, so the key moment can't leak seconds, continuous shooting.
2.Must have a certain clarity and night vision effect。640*480 resolution vehicle traveling data recorder can reflect the process of the accident from the image，But the best choose higher resolution of the vehicle data recorder，Also is the need to hd pictures (1280 * 720 resolution or 1080p FHD,4k car camera will be on the market in 2015，That can record the images more clearly information, or a person's physical traits。May be the dashcam will be the new electronics pass in transport industry.
3.A certain scope.
4.The Carcorder on the market some label says 140 ° wide, but most of the actual shooting is between 100-120 °,if over 120 degree,There will be a fisheye lens.
5.Need to have the G sensor function, said popular point is the automatic lock function,For fragment can guarantee will not be covered at the time of the accident and delete。
6.The authority of the relevant international industry certification
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