Digital Video Recorder & Network Video Recorder
A DVR (Digital Video Recorder) is the storage device that an analog camera uses. An NVR (Network Video Recorder) is the storage device for a Megapixel/IP camera. There are three essential differences between the two:
With an NVR, the video is encoded in the camera, and then it’s streamed to the NVR to be stored. It can be viewed remotely, because it’s on a network. A DVR does the encoding at the storage device itself, not at the camera.
The DVR has to be located close to the camera to get the feed. An NVR can be located anywhere along the network. Multiple NVRs can provide duplication, and protection against network failure.
Because an NVR is on a network, you can view remotely. With a DVR, you have to watch from the DVR itself, or burn a disk to view elsewhere.
If this sounds confusing, feel free to give CCTV System NYC a call at (212) 203-6276. We’d be happy to explain the differences between DVR and NVR in greater detail. If you’re considering upgrading your system, we can offer you the latest technology. If you simply need upgrades or repairs to your existing system, we can also provide you with analog and DVR equipment.