They are installed on the windshield and eat from the cigarette lighter. Such devices have a memory card on which they constantly record sound, video, date and time, and some models and GPS coordinates, speed and absolutely all shots. Video from DVRs will help in various controversial situations arising on the roads – in case of violation of the rules, in an accident and other situations. Modern manufacturers offer many models of DVRs that differ in their technical capabilities and functions. When choosing video recorders, you need to pay attention to several factors. These include: • Video quality is the most important factor when choosing. Low quality video will not allow you to consider the record in details. The best choice is Full HD C 1920×1080 resolution.• screen – many models have built -in displays, but there is without it. The screen allows you to demonstrate the recording right on the spot. And those models that do not have a display are equipped with an output for connecting a computer or monitor in order to demonstrate recording. It is clear that in road conditions the best option is models with a display.• The number of cameras – DVRs can be with one or two cameras that allow you to fix the situation in front and in the car of the machine. But here an important factor for choosing is the resolution of the cameras. The optimal choice is the swing camera, which can be directed in the right direction.• GPS module-DVRs equipped with a GPS module allow you to fix the coordinates of the terrain, speed, accurate time. Such data are of particular importance during trial.• The impact sensor allows you to protect records when hit.• The microphone allows you to record a dialogue with an employee of the traffic police or other participants in the incident.
