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NVR & DVR

Network Video Recorders (NVR) and Digital Video Recorders (DVR) save your recorded video files.

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What are NVRs and DVRs?

NVRs (network video recorder) and DVRs (digital video recorder) are what you use to manage, view, and store surveillance videos. Available with a variety of software and hard drive sizes, NVRs and DVRs make it easy to save and review videos. Which one you need, and how it works, depends on having CCTV or IP surveillance cameras.

How NVRs and DVRs Work

NVRs and DVRs have the same job of saving and storing surveillance videos, but they are designed to work with different types of cameras. Both NVRs and DVRs come in form factors—stand alone appliance, a tower server, or a rackmount server.

DVRs are used in CCTV, or analog, surveillance systems. Older systems would record video directly to tapes using a VCR; modern systems use DVRs to convert video files into digital formats, allowing you to store more videos. DVRs also give you the convenience of remote access, common on newer IP cameras and NVRs.

If you have IP cameras, you’ll want a NVR instead. These recording devices use the local network to send and receive data, and are ideal for remotely monitoring your surveillance system from your computer, smart phone, or tablet. Because IP cameras are the cutting edge of surveillance technology, including a NVR in your system allows you to include new cameras with more advanced features. While most IP cameras and NVRs are compatible, you should always check with your surveillance system integrator to ensure all your products will work together properly.

If your surveillance system has a mixture of CCTV and IP cameras, you can use specialized video encoders that allow your CCTV cameras to be connected to an NVR.

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How NVRs and DVRs Can Help You

NVRs and DVRs are ideal for managing multiple cameras from one central location. They can improve your surveillance system by:

  • Storing larger amounts of video files than a camera can store on a local Micro SD card, allowing you to keep videos for longer periods of time or record larger HD videos
  • Setting up alerts and motion detection windows, if those features aren’t available through your cameras
  • Reviewing and analyzing all your surveillance videos from a single interface, instead of accessing each camera’s videos individually

NVRs and DVRs are available from many major surveillance brands including Milestone, Smartvue, and QNAP.

Learn more with VideoSurveillance.com

With a team of knowledgeable sales and technical support representatives, VideoSurveillance.com can help you build custom NVRs for your surveillance project. Call us at (866) 945-6808 or send us a message today!

NVR & DVR Video Surveillance Blog

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