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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. KosherSwitch - Wikipedia

    en.wikipedia.org/wiki/KosherSwitch

    The KosherSwitch (a.k.a. "Kosher Switch", "Shabbos switch", "Shabbat switch") is a wall switch marketed to the observant Jewish market and institutions servicing this market, as a means of controlling electricity on-demand on Shabbat and Jewish holidays in a manner that is permissible according to some Orthodox authorities, [1] though some ...

  4. 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.

  5. Why the Supreme Court is likely to side against 170 million ...

    www.aol.com/news/why-supreme-court-likely-side...

    President-elect Donald Trump has muddied the executive and legislative branches’ united backing of the law by asking the court to pause it until he has a chance to find another solution after ...

  6. Ravens handle rival Steelers in wild-card showdown of NFL ...

    www.aol.com/ravens-handle-rival-steelers-wild...

    The Ravens went 90 yards in 1:51 at the end of the first half, as Jackson somehow evaded a sack, held the ball for 6.97 seconds and found running back Justice Hill for a walk-in touchdown with two ...

  7. Time switch - Wikipedia

    en.wikipedia.org/wiki/Time_switch

    A time switch (also called a timer switch, or simply timer) is a device that operates an electric switch controlled by a timer. Intermatic introduced its first time switch in 1945, which was used for "electric signs, store window lighting, apartment hall lights, stokers, and oil and gas burners." A consumer version was added in 1952.

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