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  2. Manual fire alarm activation - Wikipedia

    en.wikipedia.org/wiki/Manual_fire_alarm_activation

    German manual call point with paint from NOTIFIER (Honeywell) Manual fire alarm activation is the process of triggering a fire alarm through a call point, pull station, or other device. This usually causes the alarm to sound the evacuation signal for the relevant building or zone.

  3. Key retainer - Wikipedia

    en.wikipedia.org/wiki/Key_retainer

    A key retainer device (KRD) is a small metal unit that is wall or door mounted, usually designed for the interchangeable core that retains one key (Key A) while the second key (Key B) is used for authorized purposes. When the key in use (Key B) is returned into the key retainer, the key held captive (Key A) is turned and then can be released.

  4. Honeywell Aerospace - Wikipedia

    en.wikipedia.org/wiki/Honeywell_Aerospace...

    Honeywell manufactures commercial aircraft cockpit data recorders, commonly known as a "black box." In 2011 Honeywell black boxes were recovered from the infamous 2009 crash of Air France Flight 447. [54] [55] The black boxes were held 13,000 feet below water for two years at 400 times normal atmospheric pressure.

  5. How to Change the Battery in Your Car Key Fob - AOL

    www.aol.com/change-battery-car-key-fob-194637492...

    On some key fobs, the battery type will be printed on the outside. This way, you can go to the store and select your battery before you need to open up the fob. Three of the most popular brands of ...

  6. Knox Box - Wikipedia

    en.wikipedia.org/wiki/Knox_Box

    A Knox vault in an academic building A Knox KeySecure, attached inside the cab of a fire engine, holds a high-security key [broken anchor] to open KnoxBox key boxes in the area. A Knox Box is a small, wall-mounted safe that holds building keys for fire departments, emergency medical services, and sometimes police to retrieve in emergency ...

  7. Battery pack - Wikipedia

    en.wikipedia.org/wiki/Battery_pack

    Lead-acid automobile battery pack consisting of 28 Optima Yellow Tops Lithium-ion battery pack for Lucid Motors. A battery pack is a set of any number of (preferably) identical batteries or individual battery cells. [1] [2] They may be configured in a series, parallel or a mixture of both to deliver the desired voltage and current. The term ...