When you buy CCTV, you'll hear two terms for the recorder box: DVR and NVR. They sound similar and both store your footage, but they're built for different kinds of cameras.
DVR (digital video recorder)
A DVR works with analogueue cameras connected by coaxial cable. The camera sends a raw video signal and the DVR converts and stores it. DVR systems are economical and perfectly good for most homes and shops, which is why they remain very popular.
NVR (network video recorder)
An NVR works with IP (network) cameras connected by LAN cable, often with PoE (power over Ethernet) so one cable carries both power and data. The cameras process the video themselves and send it digitally. NVR systems support higher resolutions and smarter features.
Key differences
- Cameras: DVR = analogueue/HD over coax; NVR = IP over network cable.
- Image quality: NVR generally supports higher resolution.
- Cabling: NVR with PoE can be tidier (single cable per camera).
- Cost: DVR setups are usually cheaper; NVR setups cost more but scale better.
Which should you choose?
If you want the most economical reliable system for a home or shop, a DVR with good HD cameras is hard to beat. If you need crisp detail, smart alerts or a larger professional setup, go NVR with IP cameras. Not sure? We'll recommend the right one during a site survey, based on what you actually need.
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