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  2. 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.

  3. Passive infrared sensor - Wikipedia

    en.wikipedia.org/wiki/Passive_infrared_sensor

    A PIR motion detector used to control an outdoor, automatic light. A camera trap with PIR motion detector. An indoor light switch equipped with PIR-based occupancy sensor [1] A PIR-based motion detector is used to sense movement of people, animals, or other objects.

  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. Photoelectric sensor - Wikipedia

    en.wikipedia.org/wiki/Photoelectric_sensor

    Conceptual through-beam system to detect unauthorized access to a secure door. If the beam is interrupted, the detector triggers an alarm. A photoelectric sensor is a device used to determine the distance, absence, or presence of an object by using a light transmitter, often infrared, and a photoelectric receiver. They are largely used in ...

  6. NYT ‘Connections’ Hints and Answers Today, Wednesday, January 15

    www.aol.com/nyt-connections-hints-answers-today...

    If you've been having trouble with any of the connections or words in Wednesday's puzzle, you're not alone and these hints should definitely help you out. Plus, I'll reveal the answers further ...

  7. Stage lighting accessories - Wikipedia

    en.wikipedia.org/wiki/Stage_lighting_accessories

    Barn doors, or occasionally a set of barn doors, are an attachment fitted to the front of a Fresnel lantern, a type of lantern used in films, television, and theatres. [1] The attachment has the appearance of a large set of barn doors, but in fact there are four leaves, two larger and widening on the outside, two smaller and getting narrower ...

  8. Jenna announces ‘amazing’ guest co-host for 2nd week of TODAY ...

    www.aol.com/jenna-announces-amazing-guest-co...

    Jenna Bush Hager announced that Scarlett Johansson will be joining her as co-host guest during the week of Jan. 20 on TODAY with Jenna & Friends.

  9. Former ‘Ellen’ Show Producer Reacts to Allison Holker Book ...

    www.aol.com/entertainment/former-ellen-show...

    Former producer of The Ellen DeGeneres Show Andy Lassner is weighing in on the controversy surrounding Allison Holker sharing personal details about late husband Stephen “tWitch” Boss in her ...

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