Recorder tachograph by no means a simple pure market products, but has a social value products, related to people's life and property safety, related to traffic safety administration, and now more and more people have cars, tachograph has a very important role, I believe that in the near future, the relevant departments of the State Council issued the relevant mandatory documents required for each installation of the car on top of a tachograph to drive on the streets, the use of software management, for loggers in the country to create a more effective use of a favorable legal environment. 1, vehicle travel time, satellite positioning records and storage capabilities; 2, automatic emergency video using (G-senser) gravity sensing, when the collision occurred in the vehicle will automatically save the video files are not overwritten deleted. 3, night vision outstanding low light performance refers to the product, not the kind of excellent products with LED light and infrared light (TS400S is one of them), and then fill light intensity nor the two headlights on, according to the fundamental less than the road, and according to the formation of reflective glass front, tachograph seriously affect sight video resolution, did not effect. 4, manually set recording (on / off): The default is off, to open, manually set. 5, tachograph loop recording feature, if there is a video is important, but even after the video shoot, then in front of the presence of important video will be automatically deleted the problem, then an emergency video design, if have an important impact simply long press a key manually, this video would be forced to save when the card is full will not be automatically deleted (press once photographed, twice the current settings will file a continuous length of time survive, grow Press 2 seconds will save five seconds after 5 seconds before the video file).