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Security systems need to send the video they create somewhere. In the past, that meant video tapes. Today's systems use DVR technology to create and store surveillance videos.
Digital video recorders (DVR) record live events in a digital format, storing files on a network or local mass storage device, such as SSD, SD memory card, USB flash drive, or hard disk drive. A DVR security system records all video signals from a CCTV (closed-circuit television) camera. Unlike tapes, which were easily damaged or recorded over, DVR footage may be stored indefinitely, with no loss of quality. System features vary widely, as do costs.
Pros of DVR Security System
DVR systems record both audio and video signals from CCTV. The digital file format makes it simple to review and store files by date, time, event, or camera. They also allow you to choose frame rate and quality, allowing you to optimize storage space. You may also create parameters to overwrite files by date when disk space becomes too full.
Installation options include remote access via a connected network. This allows you to review recorded footage as well as monitor live events from any connected device.
Points to Consider when Looking for a DVR Security System
- Analytics firmware enables the functionality of the security system and can do such things as detect abandoned objects at a given location.
- Multiple channels enable you to connect multiple CCTV cameras. Depending on the system you choose, such a system can record video footage up to 3 megapixels 1080p in HD at night or outdoors.
- Connection options between DVR system and cameras are either wireless or tethered. The right choice for you depends on your particular needs.
- Lenses and sensors are the two features with the greatest impact on video quality. Look carefully at the distance you need to cover, as well as the distance between the camera and its field of vision. You also need to worry about night recordings, inclement weather, and motion detection. Talk to your vendor about your particular needs.
Sample Prices of DVR Security Systems
Prices for DVR security systems vary widely. Factors contributing to price include:
- The manufacturer: Prices even vary among systems with the same features
- The camera lens: Sharp focus and broad coverage require a higher quality lens
- Special features: Motion sensors and infrared vision are two common features that add to the system's total cost
- Make and model: Newer systems have more sophisticated technologies and typically cost a little more.
With so many price variables, an exact estimate is impossible without knowing your particular requirements. However, the following estimates should help you compare proposals and create your budget.
- An 8-channel, 3-megapixel DVR system with a preinstalled 2 terabyte HDD storage, HDMI and VGA output, and the ability to transfer recorded footage to an external storage device via network or USB post, averages between $1,500 and $2,000.
- A basic DVR system with 60GB storage starts between $300 and $500.
- A basic DVR system with two security cameras ranges between $600 and $800.
- The OOSSXX 4-channel HD 960P Wireless Network averages between $200 and $400.
- The OOSSXX 4CH 1080P HD wireless video security system averages between $300 and $600.
- The ZOSI 8CH security camera system 1080N averages between $200 and $400.
- The cost of camera installation ranges from $50 to $150.
- Installation of software and other equipment averages between $200 and $1,000, depending on the sophistication of the system.