A CCTV security system is a network of cameras that is set up to capture video images and transmit them to a limited audience. The viewers of CCTV footage are usually determined by the purpose of installing the cameras. Most individuals and businesses use these systems for surveillance and monitoring purposes only. However, the cameras can be used in several other applications.

CCTV surveillance is critical - not only to capture footage of incidents but more so to see what is happening in real-time. This facilitates immediate action where necessary and could prevent unwanted incidents before they occur.