Digital Video Recorder, CCTV DVR
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| 4 Channel DVR | 8 Channel DVR | 16 Channel DVR | Intelligent DVR (SMART/POS) |
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| MPEG4 PC Cards |
A Digital Video Recorder is basically a computer that converts incoming video (analog) signal from cameras to digital, compresses it and then stores it. There are many advantages of digital video recorders over their analog counterparts.
DVR's record images onto hard drives like that found in computers. DVR's are more flexible than Time Lapse VCR's because they do not require VHS tapes. Different sized hard drives can yield a much higher storage capacity than a VCR. It is possible to instantly search by date, time or event. There is no signal or quality loss while recording because the recording is digital. You have more flexible configurations and settings and it may be possible depending on the model to remotely view and control your system via the Internet.
DVRs come in various sizes 1, 4, 8, 9 and 16 Channels, where each channel represents a Video feed.
There are many types of DVRs:
Standalone DVR - These DVRs do not require any human interaction for normal operation. Configure once and then leave it alone until an incident occurs. Regular checks are recommended for assurance that it is in functional.
Standalone DVR (Pro Series) Some professional DVR have many 'add value' features like motion detection, network, Water-marking, Operation-log, Event Log, advance search features, covert camera inputs, multiple monitor outputs, video looping, etc.
PC Cards - PC cards allow you to build your own PC based DVR.
Mobile DVRs - These DVRs are designed for harsh environments where Shock and Vibration is normal, such as vehicles. Applications include - Police car, Security Vehicle, Emergency Services, Public Transportation, etc.



