The function of PIR detector in alarm

The PIR detector plays an important role in the alarm. Through its highly accurate human detection, anti-interference, fast response, energy saving and environmental protection characteristics, it has become a key component of the safety system. In intrusion detection, indoor security and fire warning, PIR detectors provide effective solutions to help keep people and property safe. 

Application in security system:
Intrusion detection: PIR detectors can be used to detect unauthorized persons or objects entering secure areas, such as homes, stores, offices, etc. Once a human passes through the detection area, the PIR detector sends a signal to trigger an alarm, alert personnel or activate other security measures.
Indoor security: PIR detectors are widely used in indoor security systems to detect personnel activities in rooms, halls, corridors and other areas. It can be integrated with other security equipment, such as door and window sensors, video surveillance, etc., to form a comprehensive indoor security monitoring system.
Fire warning: In addition to human detection, PIR detectors can also be used to detect abnormal heat changes, such as fires. When abnormal thermal radiation is detected, it can trigger alarms and activate fire warning systems so that appropriate response measures can be taken early.