If you have a home or business in San Francisco, CA, it’s always a good idea to invest in a security camera system. Once security cameras are present, they can act as an effective deterrent to thieves, and also provide you with a bit more control, convenience and information about your property, in addition to the security protection and peace of mind.
However, there’s more to a security camera system in San Francisco, CA than just buying the cameras and installing them. As with any technology, security cameras operate on different techniques and even standards, so you’ll need to think about which one you want to choose for your security camera set-up. That’s where DVR and NVR come in.
DVR stands for Digital Video Recorder system, and this is the earlier digital technology that was used for surveillance cameras. Thanks to its age, this also means that the DVR is much more common, well-established, and thus cheaper to implement, which can be a big factor for people on a budget.
DVR systems use traditional, analog cameras like the sort used in closed circuit or CCTV systems. This means that the cameras themselves don’t process images, so the only way to see the images is after they have been sent to the central recorder “box” with its AD encoder hardware.
The DVR system is both cheaper and in some cases simpler to use, but part of this is because it is more limited. A DVR camera system will always be wired, one of the trade-offs of being cheaper in price. Because of this, every camera in a DVR system will require cabling for the power and image recording requirements. People who choose this option must carefully account for the placement of cameras, and laying out enough cabling to ensure that the system gets power and transmits images to the DVR box.
NVR stands for Network Video Recorder, and, as the name implies is a more recent innovation that relies on the use of computer networks. NVR is the more expensive solution of the two, but this is for several reasons. First, while DVR is always wired, NVR has the option to go wireless. This means that your cameras run on batteries, but it also means you no longer have to worry about running enough cable from each camera.
NVR cameras cost more because they do more. In addition not requiring wires, NVR cameras process their image within the hardware itself, so in that sense, they are closer to retail cameras, or even phone cameras than the older, dedicated security cameras. They can also record sound as well, something that DVR cameras can’t do. There is no central recording system here for images. Instead, whatever storage system or hard drive you have allocated for image storage on your network, or even the cloud, is the one that the NVR system will use.
Both systems can provide a lot of security for any property in San Francisco, CA, but your budget and your needs will play a role in which one makes more sense for you to implement.