CTV cameras, or Closed-Circuit Television cameras, are extremely important parts of modern watching people systems used for different security and supervising purposes. These cameras are designed to record by a camera or computer and transmit video within a closed network, allowing for happening or viewable immediately, without any delay watching and recording of activities in particular areas. With times of moving ahead or up in technology, CCTV cameras now come in different types, including dome cameras, bullet cameras, PTZ (pan-tilt-zoom) cameras, and more, each suited to different watching people needs. Dome cameras offer quiet supervising with a 360-degree view, while bullet cameras provide long-range coverage ideal for outdoor surrounding conditions.