what is cctv camera
Closed Circuit television CCTV records images of people in certain public places including town centres roads airports and on public transport CCTV images can be used as evidence in court you can request CCTV recordings of yourself.
what is DVR
cctv DVR digital video recorders or DVR are essentially electronic devices to
assist the CCTV security cameras they allow the recording of security footage enabling convenient playback digital video recorders or DVR are essentially electronic devices to assist the CCTV security cameras.

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