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Specifications:
1/3 inch Sony CCD Camera:
1/4'' Sharp CCD Camera:
LCD:
DVR:
Package Included:
Instruction:
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Because Stand alone DVRs are built completely on just one circuit board. They are very reliable and very easy to use. Their software is simple reliable and easy to use. Basically there are no conflicts and all hardware and software are matched exactly in this (all on one board) embedded style system. PC-Based DVR's give you more complex system, they are upgradeable and expandable, but they have more crunching power by way of their bigger CPUs, monitor and memory. Understanding of Personal computers is needed to be able to use the system well.
Resolution refers to how detailed a picture the camera can see. The measurement to look for is horizontal TV lines (TVL). A normal CCTV picture is around 350 to 400 TVL, with high resolution getting up to 480 or 500. You need to make sure your entire system is capable of supporting that resolution. If your VCR records 350 lines and your monitor displays 400, the money you spent to upgrade to a camera with 500 lines is completely wasted.
DVR stands for Digital Video Recorder. A Security DVR is capable of taking the video from digital or analog cameras and recording it into a digital format on a hard drive. It can record high quality video, maintenance free, for weeks or even months. An ideal replacement for time lapse VCRs.