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  2. Passive infrared sensor - Wikipedia

    en.wikipedia.org/wiki/Passive_infrared_sensor

    A passive infrared sensor (PIR sensor) is an electronic sensor that measures infrared (IR) light radiating from objects in its field of view. They are most often used in PIR-based motion detectors . PIR sensors are commonly used in security alarms and automatic lighting applications.

  3. Motion detector - Wikipedia

    en.wikipedia.org/wiki/Motion_detector

    A motion detector attached to an outdoor, automatic light. A motion detector is an electrical device that utilizes a sensor to detect nearby motion (motion detection).Such a device is often integrated as a component of a system that automatically performs a task or alerts a user of motion in an area.

  4. Security alarm - Wikipedia

    en.wikipedia.org/wiki/Security_alarm

    A passive infrared sensor used to detect motion. The passive infrared (PIR) motion detector is one of the most common sensors found in household and small business environments. This sensor does not generate or radiate energy; it works entirely by detecting the heat energy given off by other objects. PIR sensors identify abrupt changes in ...

  5. Infrared detector - Wikipedia

    en.wikipedia.org/wiki/Infrared_detector

    Prototype of high-speed infrared detector installed on the PIONIER instrument at ESO’s Paranal Observatory. [1]An infrared detector is a detector that reacts to infrared (IR) radiation.

  6. Occupancy sensor - Wikipedia

    en.wikipedia.org/wiki/Occupancy_sensor

    Occupancy sensor types include: PIR sensors, which work on heat difference detection, measuring infrared radiation.Inside the device is a pyroelectric sensor which can detect the sudden presence of objects (such as humans) who radiate a temperature different from the temperature of the background, such as the room temperature of a wall.

  7. Simmons would have a significant impact on the Peach Bowl; he was the player who tackled Texas quarterback Quinn Ewers for a crucial third-quarter safety.

  8. Camera trap - Wikipedia

    en.wikipedia.org/wiki/Camera_trap

    A camera trap with a passive infrared (PIR) sensor. A camera trap is a camera that is automatically triggered by motion in its vicinity, like the presence of an animal or a human being. It is typically equipped with a motion sensor—usually a passive infrared (PIR) sensor or an active infrared (AIR) sensor using an infrared light beam. [1]

  9. Mike Johnson fights to retain the speaker's gavel — with help ...

    www.aol.com/mike-johnson-fights-retain-speakers...

    The House will vote at noon Friday to select a speaker. Mike Johnson has Donald Trump's endorsement, but just a handful of GOP defections could be enough to stop him.

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