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2. Electric gate - Wikipedia

   en.wikipedia.org/wiki/Electric_gate

   A sliding electric gate with electric motor and backup battery in case of mains failure. Note also the Infrared obstacle sensor located on the wall to prevent the gate from closing while a vehicle or other obstacle is in the way. Driveway gate openers can be the rollback (sliding) type that retracks a gate along the fence or wall on wheels or ...

3. Chamberlain Group - Wikipedia

   en.wikipedia.org/wiki/Chamberlain_Group

   Chamberlain Group (CGI), the corporate parent company to LiftMaster, Chamberlain, Merlin, and Grifco, designs and engineers residential garage door openers, commercial door operators, security cameras, and gate entry systems. CGI is also the parent company to Controlled Products Systems Group, the largest wholesale distributor of perimeter ...

4. Amazon (company) - Wikipedia

   en.wikipedia.org/wiki/Amazon_(company)

   Amazon Academy, formerly JEE Ready, is an online learning platform for engineering students to prepare for competitive exams like the Joint Entrance Examination (JEE), launched by Amazon India on 13 January 2021; Amazon Maritime, Inc. holds a Federal Maritime Commission license to operate as a non-vessel-owning common carrier (NVOCC), which ...

5. Universal receiver - Wikipedia

   en.wikipedia.org/wiki/Universal_receiver

   Universal receiver. A universal receiver is generally a radio receiver that is able to work with different standard transmitters. In case of home automations, this identify a radio receiver that works with almost any remote control in the market normally, used to open gates, garage doors, traffic barriers, entrance doors, etcetera.

6. Garage door opener - Wikipedia

   en.wikipedia.org/wiki/Garage_door_opener

   A residential garage door opener. The motor is in the box on the upper-right. A garage door opener is a motorized device that opens and closes a garage door controlled by switches on the garage wall. Most also include a handheld radio remote control carried by the owner, which can be used to open and close the door from a short distance.

7. Swing-door operator - Wikipedia

   en.wikipedia.org/wiki/Swing-door_operator

   Types. There are 3 basic types of swing door operators: Full Energy – It opens and closes the door at full speed. Low Energy – It opens and closes the door at reduced speed to limit the kinetic energy of the moving door to levels deemed safe for disabled users. Power Assist – This is a version of the low-energy operator.