A CCTV camera works by capturing video footage through a lens and converting it into an electrical signal. This signal is then sent to a monitoring device, such as a DVR or computer, where it is processed and displayed in real-time or recorded for later viewing.
CCTV cameras typically have a sensor, which detects light and color, a lens, which focuses the light onto the sensor, and a processor, which converts the electrical signal into a viewable image. Some cameras also have infrared LEDs to enable night vision capabilities.
The footage captured by the CCTV camera can be monitored remotely or stored for later review. CCTV systems can also be equipped with motion sensors or software that can trigger alerts or alarms when certain events occur, such as motion detection or unauthorized access.
Overall, CCTV cameras provide a reliable and effective way to monitor and secure properties, deter crime, and provide evidence in the event of an incident.