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2. 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.

3. 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.

4. 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 ...

5. Diagnostic program - Wikipedia

   en.wikipedia.org/wiki/Diagnostic_program

   Everyday examples are a microwave oven that displays code F6 to warn of a shorted temperature probe [1] or a garage door opener that flashes its control board's LED four times warning of critically misaligned safety sensors and impending shutdown. [2] Diagnostic programs are also inserted into consumer electronic products and electronic games.

6. This #1 bestselling smart garage door opener is down to $23 ...

   www.aol.com/lifestyle/win-shoppers-amazon...

   The Chamberlain MyQ Smart Garage Door Opener comes with Amazon Key—the retailer’s in-garage delivery service. It’s a life-changer that protects against bad weather, theft and damage.

7. 50 Times Cheap Fixes Had A Major Impact On Home Life - AOL

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

   Touchless kitchen faucet (it has a sensor you wave your hand in front of) 3-in-1 fan/light/heater in the bathroom. Being able to take a shower with the heater on makes me feel old but my god is it ...