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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
    5,005

    Default Re: @ 2" ceiling plate?

    Glass breakage detector for central alarm system.


  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.


  6. #6

    Default Re: @ 2" ceiling plate?

    I've seen something like that without the holes in it. One in the kitchen, one in the living room. They were the capped off lift point for a manufactured building. Look on the outside roof above the cap to find out for sure. There will be a raised nipple where the cable passed through. It should be capped off; if it's not... it will leak. (I'm aware another forum member identified it as a glass breakage sensor... it probably is... just putting in my two cents worth).

    - - - Updated - - -

    I've seen something like that without the holes in it. One in the kitchen, one in the living room. They were the capped off lift point for a manufactured building. Look on the outside roof above the cap to find out for sure. There will be a raised nipple where the cable passed through. It should be capped off; if it's not... it will leak. (I'm aware another forum member identified it as a glass breakage sensor... it probably is... just putting in my two cents worth).


  7. #7

    Default Re: @ 2" ceiling plate?

    I've seen something like that without the holes in it. One in the kitchen, one in the living room. They were the capped off lift point for a manufactured building. Look on the outside roof above the cap to find out for sure. There will be a raised nipple where the cable passed through. It should be capped off; if it's not... it will leak. (I'm aware another forum member identified it as a glass breakage sensor... it probably is... just putting in my two cents worth).


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