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  2. 8 Little-Known Costco Services That Could Save You Time ... - AOL

    www.aol.com/8-little-known-costco-services...

    Costco has teamed up with Amarr and LiftMaster to provide garage door and opener installation. To receive a free in-home consultation quote, call 1-877-258-9608 — or request one online .

  3. What travelers should know about booking a trip with Costco ...

    www.aol.com/travelers-know-booking-trip-costco...

    Costco Travel offers a range of options for travelers looking to book a trip. "We use our buying authority to negotiate the best value in the marketplace, and then pass on the savings to Costco ...

  4. Here's What Happens When Costco Books Your Vacation - AOL

    www.aol.com/heres-happens-costco-books-vacation...

    Here are a few exciting travel experiences that you can enjoy when Costco books your vacation (listed on the Costco Travel website as of May 20, 2024). Alaska: Kirkland Signature Denali Explorer ...

  5. Photoelectric sensor - Wikipedia

    en.wikipedia.org/wiki/Photoelectric_sensor

    Conceptual through-beam system to detect unauthorized access to a secure door. If the beam is interrupted, the detector triggers an alarm. A photoelectric sensor is a device used to determine the distance, absence, or presence of an object by using a light transmitter, often infrared, and a photoelectric receiver. They are largely used in ...

  6. Kirsch operator - Wikipedia

    en.wikipedia.org/wiki/Kirsch_operator

    The Kirsch operator or Kirsch compass kernel is a non-linear edge detector that finds the maximum edge strength in a few predetermined directions. It is named after the computer scientist Russell Kirsch.

  7. Automatic door - Wikipedia

    en.wikipedia.org/wiki/Automatic_door

    The automatic door used a mat actuator. In 1960, they co-founded Horton Automatics Inc and placed the first commercial automatic sliding door on the market. [5] With the invention of the Gunn diode, microwave motion detectors became common in automatic doors in the 1970s. [6] [7] In 1980, the first automatic door using an infrared sensor was ...

  8. Why You Should Upgrade Your Costco Membership if You Use ...

    www.aol.com/why-upgrade-costco-membership-costco...

    Don't upgrade because the cashier asks you -- do it to get 2% back on your trip to Paris. See why a Costco Executive membership is good for travelers.

  9. Costco Claims Its Controversial New Front-Door Policy Has ...

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    The divisive new membership requirement at Costco has been receiving both praise and criticism from customers. Costco Claims Its Controversial New Front-Door Policy Has Major Benefits for You Skip ...