CCTV stands Closed-Circuit Television, there are two types of CCTV Camera Analog and IP based Camera
CCTV camera systems that use analog cameras have been around for years. They are still the most common type of CCTV camera installed in the field, experts say. Picture a camera or series of cameras with a dedicated set of wires fed into a recording device called Digital Video Recorder and a series of monitors. Video is recorded and stored on Drive called HardDisk on site.
IP cameras typically offer better images with higher resolution and more flexibility.
Type of CCTV Camera Lens
the fixed lens is 2.8 to 3.6mm lens
Varifocal lens 2.8mm to 30mm lens
Different type Camera
2. Bullet Camera
3. C mount Camera
4. PTZ Camera
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