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2. 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.

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. They are commonly used in burglar alarms and automatically activated lighting ...

4. Occupancy sensor - Wikipedia

   en.wikipedia.org/wiki/Occupancy_sensor

   An indoor light switch equipped with PIR-based occupancy sensor [1]. An occupancy sensor is an indoor device used to detect the presence of a person. Applications include automatic adjustment of lights or temperature or ventilation systems in response to the quantity of people present.

5. 25 Great Christmas Gifts for Retirees From Dollar Tree ...

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   Remote-Controlled Motion Sensor Lights. Available at Dollar Tree for $5. For just $5, you’ll be able to give seniors added safety and peace of mind with these remote-controlled motion sensor ...

6. Home security products to protect against squatters ... - AOL

   www.aol.com/home-security-products-protect...

   Outdoor and indoor security cameras. Doorbell camera. Smart light bulbs. Door stop with alarm. Window alarm. The installation of surveillance cameras is a great first step towards home security.

7. Get Black Friday savings already at Walmart: Shop the 10 best ...

   www.aol.com/lifestyle/get-black-friday-savings...

   These top-rated lights equipped with sensors that'll automatically shine a light (three of them, in fact) when they detect motion — important when you get home after dark and can't see a thing ...