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2. Electric eye - Wikipedia

   en.wikipedia.org/wiki/Electric_eye

   Electric eye for a garage door opener. An electric eye is a photodetector used for detecting obstruction of a light beam. An example is the door safety system used on garage door openers that use a light transmitter and receiver at the bottom of the door to prevent closing if there is any obstruction in the way that breaks the light beam.

3. Garage door opener - Wikipedia

   en.wikipedia.org/wiki/Garage_door_opener

   The electric overhead garage door opener was invented by C.G. Johnson in 1926 in Hartford City, Indiana. [1] Electric Garage Door openers did not become popular until Era Meter Company of Chicago offered one after World War II where the overhead garage door could be opened via a key pad located on a post at the end of the driveway or a switch inside the garage.

4. HomeSeer - Wikipedia

   en.wikipedia.org/wiki/HomeSeer

   In 2017, HomeSeer released three battery operated Z-Wave sensors. HS-DS100+ (door/window sensor) was released in January and HS-MS100+ (PIR sensor) and HS-LS100+ (water sensor) were both released in December. Support for Google Home was also added to allow Google Home devices to control HomeSeer system devices and events.

5. Garage door - Wikipedia

   en.wikipedia.org/wiki/Garage_door

   Sectional garage door Up-and-over garage door Garage Door Hardware. A garage door is a large door to allow egress for a garage that opens either manually or by an electric motor (a garage door opener). Garage doors are frequently large enough to accommodate automobiles and other vehicles. The operating mechanism is usually spring-loaded or ...

6. 27+ best deals from Best Buy's Black Friday sale - AOL

   www.aol.com/news/27-best-deals-best-buys...

   LG 48-inch A2 Series OLED 4K Smart TV $ at Best Buy. Apple 2021 12.9-inch iPad Pro. Lowest price ever. 4.8-star average rating from 5,489 reviews on Amazon

7. Remote control - Wikipedia

   en.wikipedia.org/wiki/Remote_control

   As a complementary method to infrared remote controls, the radio remote control is used with electric garage door or gate openers, automatic barrier systems, burglar alarms and industrial automation systems. Standards used for RF remotes are: Bluetooth AVRCP, Zigbee (RF4CE), Z-Wave.