Passive Infrared (PIR)
makerA Passive Infrared (PIR) sensor detects infrared radiation emitted from objects in its field of view.
expanded
Passive Infrared sensors are electronic devices used to detect motion by sensing infrared radiation levels from objects in their range, without emitting any energy themselves. They are commonly employed in security systems and automatic lighting applications, where detecting the presence of a human body triggers a response.
examples
A PIR sensor module with a detection range of 10 meters and a detection angle of 120°.
Used in home security systems to trigger alerts when motion is detected within the specified range and angle, ensuring coverage of broad areas.
A PIR motion detector integrated into an outdoor lighting fixture to activate lights upon detecting movement within a 12-meter radius.
Operating in residential settings to enhance security and energy efficiency by turning on lights only when movement is detected.