Features choice of DVR

Before, how to choose a DVR , many consumers are familiar with its performance and advanced features of different models. However, did you know that a start must be not only on the actual data, but also on their own needs and the real need of various functions of the device? About the options and possibilities of this technology, there are many myths that we now try to debunk.

You should start with the fact that many believe in the existence conditions NightShot infrared light is necessary. But in fact, it improves coverage for only a few meters in the direction of the camera unit. The most popular and the real objective of IR illumination is not shooting in a moving car in the dark. Its purpose - to show the citizens face in the video, which will get very close to the DVR. Suppose, in the middle of the night you were stopped by the traffic police. In this case, you only have to deploy cameras, including IR illumination and "noisy picture" changes to a clear image. Light from operating machinery and will not be superfluous in the dark hours.

If you choose a DVR that can carry a high quality night shots, look for models that implement the system of glass lenses. With this technique, you will see much more than when using recorders equipped with lenses made of plastic.



Another misconception concerns of customers that interpolation is able to give a clear picture. In fact, it is only "stretches" the image. If you do not want to make a mistake when buying equipment for its cars, guided not by the "paper" characteristics, and by rollers which are laid out on YouTube. Find them on the web is easy. Remember that interpolation never used by manufacturers of high-quality video recorders, valuing his reputation.

Naturally, to get acquainted with the technical data specified in the manual and on the packaging, as it should. But their priorities do not need.