How to choose a DVR?

One of the most important parameters when choosing a DVR for a car is video resolution. This characteristic is measured in pixels by the width / height of the frame. The higher the number, the more accurate the picture will be, more detailed. Top models even allow you to capture what the driver was doing while driving an oncoming car while driving. Currently, the following types of DVRs are found in the automotive market according to the video resolution standard:

• Vga (640x480) - an inexpensive option, providing for poor image quality;
• HD (1280x720) - provides for shooting video in an acceptable quality, the picture can be viewed on a laptop screen, PC;
• Full hd (1920x1080) - good quality supported by widescreen TVs;
• Super hd (2304х1296) - premium segment. Even on a small screen, small details will be visible.

It is worth adding that models from the budget segment are often equipped with frame interpolation in order to increase the resolution. In reality, the picture is “stretched," but the quality is deteriorating.

This characteristic is denoted by FPS. The higher the value, the video plays more clearly, more smoothly. When choosing a DVR, keep in mind that a high resolution in an inexpensive model, as a rule, indicates a low FPS value, as the load on the processor increases, and manufacturers have to sacrifice something. With a video recording frequency of 15 frames, you should not count on a good freeze frame. The optimal value varies from 30 frames. In addition, you should pay attention to the viewing angle. When buying such a technique, you need to focus on maximum coverage. It is worth noting that wide-angle objects often distort the picture in the presence of high resolution. Therefore, you should test the gadget at maximum settings.

Unfortunately, not many sales consultants draw the attention of a potential buyer to the quality of shooting in poor lighting. For obvious reasons, choosing a car DVR should focus on models with LED backlight. Light from the headlights often leads to the appearance of light. Therefore, it is important that the device is equipped with HDR or WDR technology to expand the dynamic range of shooting. Please note that the first is implemented by the program, the second in hardware, due to special sensors. Naturally, WDR technology is more expensive, but better.

In most cases, this device is attached to the windshield.When choosing a DVR for video shooting, pay attention to the quality of the fasteners: a bracket with a suction cup. As practice shows, the use of cheap models is accompanied by the fact that after 10-20 dismantles, you need to buy new fasteners. It is advisable that the bracket be equipped with a snap ring for adjusting the position. If the installation involves winding up the device, note that stepwise adjustment makes operation difficult. In such models, the tilt can only be adjusted after loosening the nut. This is inconvenient and the resistance of the locking teeth will gradually destroy the mount.

In most cases, videos are recorded on a memory card, as the internal memory is either too small or not at all. As an additional format, SD or microSD can be used, the difference between which is manifested only in size. Modern models support cards up to 32 GB. Older models are up to 16 GB, and this is not enough for the current video quality. When choosing a card for the DVR, it is better to focus on a class below Class10. For a small resolution, you can higher. Otherwise, the device will slow down.

If you intend to choose a good DVR, you should pay attention to additional options. Today, almost all modern gadgets are equipped with a GPS module: built-in or external. This function is responsible for linking video content to the geographical coordinates of the car. Premium models are able to download the location of stationary police cameras from the Internet.

Another useful option is a remote camera located at the back near the room. With it, motorists can control the rear hemisphere.

Sensors of acceleration and motion are noteworthy, which allows you to automatically start shooting when the car is moving. In addition, these options automatically save the recording upon impact. If you decide to purchase a model with a screen, keep in mind that it is better to choose a rotary case, up to 270 degrees. Some models are additionally equipped with audio output and HDMI for connecting to a monitor. It's comfortable.

Currently, there are two types of registrar according to the installation method - standalone and battery operated. The advantage of the first option is that DVRs can save files during a sudden power outage. If the battery runs out, the models connected to the cigarette lighter will stop shooting video. But they are cheaper. For constant trips, it is better that the wire is connected through spring-loaded contacts. As for the design, the best option is a DVR-mirror. Such models are practical, especially if you need to often remove the device.

In fact, the model with a radar detector is a stationary device with a GPS module. The advantage is that they inform about the “shooter”, at least per kilometer. When choosing a DVR with a radar detector, it is important to pay attention to the quality of the receiver. Some models are not able to notify the user in a timely manner of an upcoming scan. It is worth adding that premium solutions can be “3 in 1”, that is, combine the functions of a radar detector, shoot video and display a map. Such models are 25-30% more expensive.

Wi-Fi module is useful for those users who plan to control the device remotely. Also, the choice of a DVR for a car with this option lives up to expectations when synchronizing the device with a smartphone or tablet. This is a good opportunity to surf the net in your free time. You can also quickly post content online.

Finally, I would like to advise you to evaluate the quality of video on the Internet before buying a particular model. Also, the reviews of other buyers will help to determine the choice. Good luck