A Digital Video Recorder (DVR) is an essential component of a CCTV surveillance system that records video signals from analog or HD cameras and stores them on an internal hard drive. It converts analog signals into digital format, allowing users to easily view, replay, and manage recorded footage.
DVR systems support multiple camera channels (such as 4, 8, 16, or 32 channels) and offer various recording options including continuous recording, scheduled recording, and motion-based recording. Many modern DVRs provide features like remote viewing through mobile apps or web browsers, HDMI/VGA output for live display, USB backup, and network connectivity.
Digital Video Recorders are widely used in homes, offices, shops, warehouses, schools, and commercial buildings. They provide reliable 24/7 surveillance recording, secure data storage, and easy playback functionality, making them a core part of any traditional CCTV security setup.

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