The Basics of DVR Security Systems That You Must Know

cctv cameras

DVR stands for Digital Video Recorder. A DVR security system consists of multiple cameras that are connected to a hard drive where the digital video footage is stored in a digital format. This surveillance system is popular because it is an economical solution. But before you invest your money in a DVR security system, there are several fundamentals that you must bear in mind. 


When you go to a security camera store, you will probably get an offer NVR system in addition to your request for DVR. NVR is an abbreviation Network Video Recorder. Unlike DVR that processes the video in the recorder, NVR gets it done in the cameras. From there, as you can guess, NVR will cost you more money than the DVR. 

DVR’s Analog Cameras

A DVR security camera system uses analog cameras. And that is the sole reason why you can save a lot of money on this surveillance system. However, this benefit is also a drawback because, unlike NVR, you can’t mix cameras with a DVR system. When you want to add more cameras to your property, they all have to be analog. Also, the mounting of analog cameras often provides another challenge because the cables used are big and rigid. 

Image Quality

a surveillance systemSince DVR uses analog cameras, the image resolution of the video won’t be as high-definition as digital cameras. The signal transmitted from the cameras is analog. Only after it reaches the recorder, it is transformed into the digital format. The maximum quality you can get with a DVR system is 705 x 480 pixels.

DVR Cabling

For a DVR system, you need to be clever with the cables. It uses coaxial cables, meaning that there will be two separate cables, one is for the visual signal, while the other is for power. You will need a power outlet with multiple sockets for this system. 

Moreover, you need to note that coaxial cables reduce image quality after they extend more than 300ft/90m. Lower quality cables may have even a shorter distance. Since the cabling of DVR is challenging, you’d better entrust the task to a professional technician. 

Vital Features of Top Battery-Operated Outdoor Security Cameras


With crimes happening in even the most secure places, to secure your home with security cameras can be one of the wisest things to do during these times of increasing criminality. Security cameras may not help during the actual commission of crimes. Still, they record the event that can point out the identities of criminals which can lead to the early resolution of offenses. Security cameras are helpful to prevent crimes. When offenders know that a place is packed with security cameras, they will, for sure, avoid these places.

This is the reason why you should have the best battery operated outdoor security camera. Having units of them installed in your yard will discourage criminals to enter your house. And when they are not aware of the presence of the cameras, and they still proceed with their illegal acts, they will surely be caught by the security cameras even at the darkest hours of the night. The top security cameras have alarms too. They can be caught up by the police before they can successfully break into your home.

With the importance of security cameras in the prevention and resolution of crimes, it is truly crucial to have the best battery-operated security cameras installed in your yard with the following cutting-edge features.

cameraWide Viewing Angle

Security cameras with a 160-degree viewing angle will be able to cover more of the scenes during a crime because a larger area can be seen on the monitor. By having units that have a wider lens, you may need fewer security cameras to cover the same area than when you use other cameras.

Full-Color Night Vision

Gone are the days when security cameras can only produce black and white images when videos were taken at night. Indeed, a camera that has full-color vision will be more useful in identifying perpetrators of crimes.

Motion Sensor

Security cameras may not be as useful when nobody is constantly looking at the monitor. But when a security camera has a motion sensor, you can be alarmed to check on your monitor because a movement has been recorded by the security camera. This will give you enough time to call law enforcers if you happen to see something else that can harm you or your belongings.

Longer Battery Life

What’s good about the current crop of battery-operated security cameras is that they have longer battery life. Some can last for six months while others can have a battery life of two years. You can also choose a camera which can be charged by way of electricity or solar.

 Battery-operated cameras are typically easy to install. Other features that may separate the different leading brands of outdoor security cameras from other cameras may be on the quality level of resonance and their storage capacities. These are high-end features of top security cameras and may affect their affordability.…