A Closed-Circuit Television (CCTV) camera is a security device used for monitoring and recording activities. It typically consists of a lens, image sensor, and protective housing. Key features include:

Resolution:

 Measured in TVL for analog or megapixels for digital cameras, affecting image clarity.

Night Vision:

Infrared LEDs enable visibility in low light.

Field of View:

Determines the area covered by the camera.

Pan-Tilt-Zoom (PTZ):

Allows remote control of direction and zoom.

Connectivity:

Wired or wireless options, some supporting Power over Ethernet (PoE).

Motion Detection:

Triggers alerts or recording when movement is detected.

Weather Resistance:

Outdoor models are often dust and water-resistant.