Closed-circuit television

(CCTV) is the use of video cameras to transmit a signal to a
specific place, on a limited set of monitors.

It differs from broadcast television in that the signal is not
openly transmitted, though it may employ point to point (P2P), point
to multipoint, or mesh wireless links. Though almost all video
cameras fit this definition, the term is most often applied to those
used for surveillance in areas that may need monitoring such as
banks, Shopping Malls, Supermarkets, Warehouses, Offices, airports,
military installations, and convenience stores. Video telephony is
seldom called "CCTV" but the use of video in distance education
where it is an important tool.

In industrial plants, CCTV equipment may be used to observe parts of
a process from a central control room, for example when the
environment is not suitable for humans. CCTV systems may operate
continuously or only as required to monitor a particular event. A
more advanced form of CCTV, utilizing 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-based CCTV cameras, some equipped with megapixel sensors, support
recording directly to network-attached storage devices, or internal
flash for completely stand-alone operation.


An integrated Systems Unit     

Integrated systems allow users to connect remotely from the internet
and view what their cameras are viewing remotely if the user
travelling around the globe or in different country able to watch
what’s going on around you house premise to contact the police
directly from any destinations through internet connection.