NVR vs. DVR Security Cameras: What’s the Difference?

NVR and DVR security cameras both offer dependable video surveillance, allowing you to capture what’s happening inside and outside of your business. However, there are important differences between the two systems, especially in terms of how video footage is stored—and how it’s viewed.

Choosing the right system for your business is critical because you want to be sure you have the clearest view of your premises, whether in real time or via recorded clips.

Here’s what you need to know.

The main difference between NVR and DVR security cameras

The primary difference between NVR security cameras and DVR systems is that NVR systems process video footage at the camera, whereas DVR systems process it at the recorder.

What does that mean?

It all boils down to how the systems process raw video data for storage and viewing. NVR – which stands for network video recorder – is purpose-built for digital video data. Most of today’s “IP cameras” and Wi-Fi cameras are NVR, because the footage is processed at the camera, allowing for easier storage and streaming over the Internet. The raw video data is processed before it’s transmitted to the recorder (i.e. a disk drive, SD card, USB flash drive, etc.).

In contrast, DVR – which stands for digital video recorder – starts with analog video data and then converts it to a digital format at the recorder.

Why it matters

How your security footage is processed and stored affects how easily you can access it. That includes the real-time video and recorded clips.

Traditional DVR security cameras are designed more for on-premise storage, as opposed to streaming video over the internet. That is why DVR is also sometimes referred to as CCTV (closed-circuit television), because in theory the video footage stays on the local storage device. (However, some DVR recorders can be configured for remotely accessing the stored video footage.)

Since NVR security systems process video data at the camera, this data is immediately ready to be transmitted over the Internet and to storage devices.

Which is better, NVR or DVR?

Choosing NVR or DRV security cameras will depend on your unique security goals and needs. Both have advantages and can be deployed in any commercial environment, indoor or outdoor.

That said, NVR systems are typically considered more robust systems, because of how they process video at the cameras. Advanced compression and processing capabilities allow for numerous types of video enhancement, in addition to instant streaming.

For example, with Wisenet X Series NVR cameras from PROTECTION PLUS, the system can automatically stabilize digital images to remove motion blur caused by wind or vibration. Plus, it can use multiple simultaneous frame-captures at different exposure levels, in addition to low-light enhancements, to produce superior video quality, automatically. Advanced systems also allow for intelligent video analytics, such as facial recognition technology. Wisenet X systems can also detect various types of audio, such as explosions, glass breakage, gun shots or a person screaming.

Of course, not every business will require these capabilities, which is why the decision between NVR and DVR security cameras ultimately depends on your specific needs.

Let our experts help you decide

To learn more about your options, request a no-obligation security system consultation from PROTECTION PLUS. Our experts will go over your options in greater detail and provide business-specific recommendations to help you choose the right security camera system for your needs.

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