A DVR (Digital Video Recorder) is a device used to record broadcast Cameras Live video. Digital video recorders use a hard drive for storing programming data. This depends on the user requirement ranging from 160GB to even 1 Terabyte. This can be connected over the network using a built-in TCP/IP and even can be watched over the INTERNET.

This device is available in 4, 8 & 16 channels as standard. Depending upon the user requirement the DVR is chosen. For instance if the requirement is of 4 cameras, then you need a 4 channel DVR. All the cameras are connected to this DVR & recording happens in the HARD DISK. You can go back to any date and any time to see what exactly happened and who were involved in any incident.