EGT NETWOKS,INC
  • Bakary Cisse

Pick Between NVR and DVR recorder for your Security Camera System

Updated: Apr 18


Edited by EGT NETWORK, INC., experts in security camera system installation and maintenance.

DVR And NVR recorder side-by-side




If you're planning to get a new place (business, building, or apartment) or you already own a place with or without a surveillance system installed, here are 3 situations you might find yourself in. You need:


  • To install a new security camera system;

  • To maintain or fix your existing surveillance camera system;

  • To completely replace an existing security camera system;

  • Install or modify an existing system into a hybrid system - a combination of multiple surveillance cameras or recorders;


For us to help you with your issues, you need to understand the difference between the surveillance system recorders on the market. To do so, we'll explain:

  • The difference between an NVR and a DVR surveillance system;

  • Pros and cons NVR and a DVR surveillance system;

  • Explain which system to consider in which case scenario or which one you need.



Difference between an NVR and a DVR surveillance system recorders.



Let's explore each one individually and finally compare them.



What's an NVR surveillance recorder


NVR stands for Network Video Recorder and its main function is to encode and process data at the camera before transmitting it to the recorder for storage and remote viewing and connects to an IP camera system over an Ethernet or Wi-Fi connection.



What's a DVR surveillance recorder



DVR stands for Digital video recorder and converts analog footage into a digital format. The conversion is done here at the recorder and connects to an analog CCTV system via a coaxial cable unless they've been reconfigured.


 

A close comparison of NVR and DVR surveillance system


The main difference, so far, between the DVR and NVR surveillance systems is in the way they process row data. The NVR system processes it at the cameras while the DVR processes it at the recorder.


A closed comparison implies we explore the pros and cons of our surveillance systems. Important terms we'll be discussing:
  • Analog camera

  • coaxial cable

  • AD encoder

for DVR system


  • IP camera

  • ethernet cable

  • PoE connection

for NVR system




Pros and cons of NVR and DVR surveillance system


NVR surveillance system

  • Cheaper because they use analog cameras that don't process any data, therefore less complex and easier to install. Pro

  • They use coaxial cables which can run 500 meters, but, unfortunately, can't transmit audio signal and power natively to the camera and have a limited number of audio ports limiting the number of cameras able to record sounds. Pro and Con.

  • Coaxial cables are wider and stiffer than Ethernet cables, making installation a challenge. Con

The cameras can cost cheaper but the labor can more...


DVR surveillance System

  • They work with IP cameras that record and process the images and audio they receive before sending them to the recorder.

  • They support advanced analytics such as license plate reading and facial recognition.

  • They work with ethernet cables that can, unfortunately, run only 100 meters, compared to coaxial cable, but some of them still have some advantages over DVR systems.

  • Some of them come with a PoE connection, which allows them to use only one ethernet cable for power audio and video.

  • Their recorder is only used for storage and footage view purposes

  • Because of their thin shape, they tend to be easier to install

  • Because they are smarter, they can store data in cloud-based storage, which let them have higher local storage.


Which one is better?


Both, the NVR and DVR systems are good depending on the requirement. If you need a surveillance security camera system that's able to record and don't really need a large space to do so, a DVR system may be good for you.


As we experiencing high demand in complex operations, remote access to footage, and cloud-based storage capable surveillance systems, NVR systems are in high demand because they are definitively able to meet all these requirements.




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