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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. Principles of motion sensing - Wikipedia

    en.wikipedia.org/wiki/Principles_of_Motion_Sensing

    Gyroscopes measure the angular rate of rotational movement about one or more axes. Gyroscopes can measure complex motion accurately in multiple dimensions, tracking the position and rotation of a moving object unlike accelerometers which can only detect the fact that an object has moved or is moving in a particular direction.

  5. 50 Times Cheap Fixes Had A Major Impact On Home Life - AOL

    www.aol.com/55-people-share-relatively-cheap...

    $10 red motion activated night lights for the bathrooms. Nice for midnight infant diaper changes and brushing teeth before the sun is up in the morning when the overhead light is just too much.

  6. How to safely restart your wall heater — and get help if needed

    www.aol.com/news/safely-restart-wall-heater-help...

    Lighter Side. Medicare. new

  7. Radiant heating and cooling - Wikipedia

    en.wikipedia.org/wiki/Radiant_heating_and_cooling

    Outdoor radiant heaters allow specific spaces within an outdoor area to be targeted, warming only the people and objects in their path. Radiant heating systems may be gas-fired or use electric infrared heating elements. An example of the overhead radiant heaters are the patio heaters often used with outdoor serving. The top metal disc reflects ...

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