Closed-circuit television
Closed-circuit television (CCTV) is the use of video cameras to send a signal to a certain place, on a small set of monitors. It is often used to watch for trouble.
Closed-circuit Television Media
Surveillance cameras on the corner of a building
Surveillance camera in a residential community
Closed circuit TV monitoring at the Central Police Control Station, Munich, Germany in 1973
Desk in one of the regional control-rooms of the National Police in the Netherlands in 2017
CCTV control-room monitor wall for 176 open-street cameras in 2017
Sign warning that premises are watched by CCTV cameras
Closed circuit television cameras captured the perpetrator of the Washington Navy Yard shooting, Aaron Alexis, during his rampage
Dome camera in Rotterdam central metro station
