Infrared detection alarm is a common security device, which detects changes in the surrounding environment by sensing changes in infrared rays, and sends out alarm signals when abnormal conditions are found. Infrared detection alarms are mainly used for indoor security, and can be applied to homes, offices, stores and other places. The following describes the circumstances under which an infrared detection alarm triggers an alarm.
1.Human body movement: The infrared detection alarm can sense the heat of the human body, and when someone enters the monitoring area, the infrared change will be perceived by the detector, thus triggering the alarm. The alarm in this case can effectively prevent intruders from entering the protected area.
2.Temperature Changes: Infrared detection alarms can also sense temperature changes. When there is a fire or smoke, the temperature will rise rapidly, and the infrared detector can trigger an alarm by sensing the temperature change, and remind people to take corresponding countermeasures in time.
3.Light Changes: Infrared detection alarms can also sense changes in light. When a person or object blocks the light, the infrared change will be perceived by the detector, which will trigger an alarm. The alarm in this case can be used to prevent theft, robbery and other crimes.
4.Voltage anomaly: The infrared detection alarm can also sense the voltage anomaly. When the voltage exceeds or falls below a set threshold, the detector triggers an alarm to remind people to check if there is a problem with the circuit to prevent a fire and other hazards caused by a faulty circuit.
5.Vibration or Impact: Some infrared detection alarms also have vibration or impact sensing. When a person or object vibrates or impacts the device, the detector senses a change in the vibration or impact and triggers an alarm. The alarm in this case can be used to prevent criminal acts such as vandalism, breaking into the door, etc.
Infrared detection alarms can trigger alarms in the event of human movement, temperature changes, light changes, voltage anomalies, and vibrations or impacts. By sending out alarm signals in time, infrared detection alarms can effectively protect people's property safety and personal safety.