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  1. #1
    Join Date
    Aug 2011
    Location
    Victoria
    Posts
    24

    Default @ 2" ceiling plate?

    Anyone know what this thing on the breakfast area ceiling is - it's about two inches in diameter and is in a few other rooms too.

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  2. #2
    Join Date
    Feb 2008
    Location
    Caledon, Ontario
    Posts
    4,949

    Default Re: @ 2" ceiling plate?

    Glass breakage detector for central alarm system.

    The value of experience is not in seeing much, but in seeing wisely.

  3. #3
    Join Date
    Aug 2011
    Location
    Victoria
    Posts
    24

    Default Re: @ 2" ceiling plate?

    Quote Originally Posted by Raymond Wand View Post
    Glass breakage detector for central alarm system.
    Thanks Raymond!


  4. #4
    Join Date
    Dec 2015
    Location
    NV
    Posts
    1

    Default Re: @ 2" ceiling plate?

    Many newer homes have fire sprinkler heads covered by plastic caps. They pop off when the system activates.

    - - - Updated - - -

    Many newer homes have fire sprinkler heads covered by plastic caps. They pop off when the system activates.


  5. #5
    Join Date
    May 2015
    Location
    WA
    Posts
    1

    Lightbulb Re: @ 2" ceiling plate?

    Yes sir! You find those in most multi-family units! And some homes.

    - - - Updated - - -

    Yes sir! You find those in most multi-family units! And some homes.


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