CCTV stands for closed circuit surveillance system. CCTV camera is an imaging device that produces a video signal in the basic bandwidth. CCTV imaging camera is a high resolution camera with over 380 TV lines in black and white and 330 TV lines in color. CCTV camera is a standard rectangular shape camera used for overt security. CCTV system is a general term used for a complete security system including camera(s), monitor, time lapse VCR etc. CCTV system consist of CCTV monitors, CCTV accessories, encoders, DVRs, CCTV lenses, quad processors, CCTV video recorders, mini cameras, dome cameras, pinhole cameras etc.
Most of the people do not have much idea about different type of video surveillance cameras. Hence while buying a CCTV surveillance camera or a typical security camera it is necessary to know about the device and its usage. CCTV camera systems are in the simplest terms hidden cameras that transmit live video onto the monitor which can be viewed by the person. It is a television system intended for only a limited number of viewers. CCTV surveillance systems and other security cameras are available in a wide variety of form and sizes. Be it for business purpose or household, wired systems or wireless CCTV systems are available at affordable prices.
In short, CCTV surveillance is an arrangement consisting of a cameras and lens with all other equipment required for the surveillance of a specific desired area. CCTV systems are installed in malls, banks, corporate parks and other places of importance.