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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. 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 ...

  4. 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.

  5. 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]

  6. Disco ball - Wikipedia

    en.wikipedia.org/wiki/Disco_ball

    A disco ball (also known as a mirror ball or glitter ball) is a roughly spherical object that reflects light directed at it in many directions, producing a complex display. Its surface consists of hundreds or thousands of facets , nearly all of approximately the same shape and size, and each has a mirrored surface.

  7. What College Football Playoff games are today? Breaking down ...

    www.aol.com/college-football-playoff-games-today...

    The College Football Playoff got underway Friday but the main course is spread out through Saturday. Three first-round games will be played across three separate campus sites from State College ...

  8. AN/ALQ-144 - Wikipedia

    en.wikipedia.org/wiki/AN/ALQ-144

    An ALQ-144 jammer mounted on an OV-10 Bronco.. The AN/ALQ-144, AN/ALQ-147, and AN/ALQ-157 are US infrared guided missile countermeasure devices ().They were developed by Sanders Associates in the 1970s to counter the threat of infrared guided surface-to-air missiles like the 9K32 Strela-2.

  9. Burrow, Chase lift Bengals after botched blocked punt by ...

    www.aol.com/burrow-chase-lift-bengals-botched...

    Burrow threw a tiebreaking 40-yard touchdown pass to Ja'Marr Chase after Dallas botched a blocked punt to give the ball back to Cincinnati in the final two minutes, and the Bengals beat the ...

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