monitor CCTV
Traditional CCTV systems
2010-01-13 18:50:41
At the beginning let's focus on expanding the traditional video monitoring systems, which are part of the base DVR recorders. Expansion of this type of installation is not difficult but quite limited as the basic element of such a system, which is a DVR recorder has a limited number of input channels of audio / video. If you need to expand to
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