Closed-circuit television (CCTV)
Surveillance of the public using CCTV is common in many areas around the world. Video surveillance has generated significant debate about balancing its use with individuals' right to privacy even when in public.[5][6][7] In industrial plants, CCTV equipment may be used to observe parts of a process from a central control room, especially if the environments observed are dangerous or inaccessible to humans. CCTV systems may operate continuously or only as required to monitor a particular event. A more advanced form of CCTV, using digital video recorders (DVRs), provides recording for possibly many years, with a variety of quality and performance options and extra features (such as motion detection and email alerts). More recently, decentralized IP cameras, perhaps equipped with megapixel sensors, support recording directly to network-attached storage devices, or internal flash for completely stand-alone operation.In the United States, the first commercial closed-circuit television system became available in 1949, called Vericon. Very little is known about Vericon except it was advertised as not requiring a government permit.[13]
A dome CCTV camera gets its name from the dome-shaped casing that the camera sits in.
Bullet CCTV cameras have an iconic design that is highly visible.
C-Mount CCTV cameras are the ideal option for those who may wish to adapt the field of vision.
These cameras have been built specifically to operate effectively, regardless of how well lit their environment is.