closed-circuit television
US /ˌkloʊzd ˌsɝː.kɪt ˈtel.ə.vɪʒ.ən/
UK /ˌkloʊzd ˌsɝː.kɪt ˈtel.ə.vɪʒ.ən/

1.
Videoüberwachung, CCTV
a television system in which the signal is not publicly broadcast but is distributed to a limited number of receivers, used for surveillance and security purposes
:
•
The bank uses closed-circuit television to monitor its premises 24/7.
Die Bank nutzt Videoüberwachung, um ihre Räumlichkeiten rund um die Uhr zu überwachen.
•
Security cameras are part of a larger closed-circuit television system.
Überwachungskameras sind Teil eines größeren Videoüberwachungssystems.