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  2. 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.

  3. Daylight harvesting - Wikipedia

    en.wikipedia.org/wiki/Daylight_harvesting

    [3] [4] In an open-loop system, the photosensor detects the amount of available daylight only, and can be positioned on the building's exterior wall or roof, or inside the building facing the window or skylight. In a closed-loop system, the photosensor detects the total photometric amount of light, from both daylight and electric sources in the ...

  4. Pattress - Wikipedia

    en.wikipedia.org/wiki/Pattress

    External pattress boxes: power and data sockets. A pattress or pattress box or fitting box (in the United States and Canada, electrical wall switch box, electrical wall outlet box, electrical ceiling box, switch box, outlet box, electrical box, etc.) is the container for the space behind electrical fittings such as power outlet sockets, light switches, or fixed light fixtures.

  5. HomeSeer - Wikipedia

    en.wikipedia.org/wiki/HomeSeer

    In March 2016, HomeSeer released a line of Z-Wave Plus lighting products. [19] The line included the HS-WS100+ wall switch, HS-WD100+ wall dimmer, HS-WA100+ wall accessory (for 3-way circuits), HS-PD100+ lamp module, HS-PA100+ appliance module and HS-DTA19+ smart light bulb. In September, a Z-Wave motorized water valve was released.

  6. 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.

  7. 11-Year-Old's Brain Tumor Discovered After Roller Coaster ...

    www.aol.com/lifestyle/11-olds-brain-tumor...

    Related: 8-Year-Old Boy's Dream of Skydiving Finally Comes True After Lazy Eye Led to Terminal Cancer Diagnosis (Exclusive) Campbell was diagnosed with medulloblastoma, a type of brain tumor that ...

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