Security Camera DVR
Security Camera Digital Video Recorders (DVRs) can be one of the most confusing aspects of purchasing a security system, especially when you come across multi channels DVRs. Here we explain everything you need to know about the multi-channel system so you can make an educated decision before investing any more of your time and money.
Note that DVRs are to be used for analog cameras. The recording devices used with digital cameras are known as NVRs (Network Video Recorders). This terminology can be confusing, but DVRs are “digital” because they convert the analog signal into digital signal.
What are Multi-Channel DVRs?
Firstly, it is important to understand that “channels” in video surveillance refers to the amount of cameras your security DVR system can support. If you have a DVR system with 4 channels, then it will be able to support 4 security cameras. Each camera is assigned to a channel – “camera 1” is played through channel 1 and so on.
How Many Channels Can a DVR Support?
Typically, a multi-channel DVR can support cameras in groups of 4, so you can have a system that supports 4, 8, 12, etc. cameras. A DVR is able to support up to 32 channels/cameras, but the DVR you choose depends on how much security you want; the more cameras you want, the more channels you will need.
Why Would I Need More Channels?
If the goal of your security system is to protect your home with outdoor surveillance, then a 4 channel DVR would suffice. This is because it would allow for a camera to be placed on every side of a square building. On the other hand, if you want to create a surveillance system for a large warehouse, then you would need more channels to match the greater number of cameras required.
Is There a Benefit to Having More Channels?
The benefit of investing in a DVR system with more channels than you initially require is the potential for expanding your security system over time. If you are protecting a home then there might not be a need to invest in a DVR with more channels, but if you own a business or warehouse, then as your business grows or once you can afford to add a greater level of protection, the ability to expand your security without having to buy another DVR can come in particularly useful.