Closed Circuit Television also known as Video surveillance is the use of video cameras for particular location which transmits signals or broadcasts the visuals on its dedicated monitor screen.

There are many types of CCTV cameras which are used as per the location and need, commonly used are:

  • Bullet camera: Mostly used for indoor and derives its name from the sleek cylindrical look.
  • Dome camera: Which derives its name from the shape it is contained. These cameras capture a wide angle and are generally kept visible to the visitors to show that the facility is being watched.
  • Covert/ Desktop/ Board cameras: These tiny cameras are suitable for desktop for the purpose of Skype or other low resolution teleconference application.
  • Infrared/ Night vision cameras: These cameras have the ablility to capture images in pitch black conditions.
  • Outdoor cameras: These are resistant to water, moisture, dust and other elements.
  • Day/ Night camera: These have the ability to adjust itself as per the varying light conditions.
  • Varifocal camera: This allows the operator to zoom in or out without losing the focus of the image.
  • Network/ IP camera: These cameras have the ability to transmit images to internet in a compressed bandwith as required.
  • Wireless: As the name suggests these are wirefree and thus gives a flexibility in installation and change in locations.
  • PTZ/Speed domes camera: Pan/ Tilt/ Zoom cameras give the operator the ability to tilt or move left,right, up & down or to zoom in & out.
  • High definition cameras: These help the operator to focus at a partiticular point with great clarity. Generally used for places such as casino tables, cashiers desk etc.


The basic components of CCTV system are as follows:

  • Cameras : Which are selected as per the purposes as mentioned above.
  • DVR : Digital video recorder which records visuals captured by the camera(s) at specified locations.
  • Monitor/ Screen: The monitor with required configuration displays the visuals recorded by the DVR, captured by cameras.


The process of installation is simple as mentioned below:

  • Identifiying the locations for camera, DVR & Monitor.
  • Carrying out conduiting and cabling work for providing electric supply to all the components of CCTV system.
  • Connecting the Cameras with DVR, DVR with Monitors with appropriate cables as per manufacturers instructions.
  • All above electrical and CCTV cabling works should be carried out at the time of framing for partitions and false ceiling work as the same can be concealed.
  • After the partitions/walls and ceiling are finished and painted the cameras can be mounted on walls or ceilings as per use and type of camera. The DVR & monitors also can then be commisioned and tested for use.