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Smoke alarm sticker says replace by 2012. Which type for a straight swap

  • 29-10-2019 8:28am
    #1
    batman1
    Registered Users, Registered Users 2 Posts: 605 ✭✭✭


    Was changingthe battery in one of our 2 smoke alarms and found a sticker underneath casting replace alarm by 2012. Never knew it and sticker is well hidden.

    Anyways, the current alarms are connected using a square 3 pin type connector onto the back of the unit, ie, the 3 pins are on the alarm and the plug is coming down from the ceiling.

    Rather than having to get an electrician to rewire new alarms, is this plug common nowadays and can I get a straight swap to just plug in?


Comments

  • #2
    2011
    Moderators, Home & Garden Moderators, Technology & Internet Moderators, Regional East Moderators Posts: 12,641 Mod ✭✭✭✭2011


    If it is like for like, yes.

    Typically smoke detectors expire after 7 years.


  • #3
    Risteard81
    Registered Users, Registered Users 2 Posts: 2,567 ✭✭✭Risteard81


    2011 wrote: »
    If it is like for like, yes.

    Typically smoke detectors expire after 7 years.

    It's generally 10 years.


  • #4
    Thoie
    Registered Users, Registered Users 2 Posts: 6,344 ✭✭✭Thoie


    2011 wrote: »
    If it is like for like, yes.

    Typically smoke detectors expire after 7 years.
    Risteard81 wrote: »
    It's generally 10 years.

    Am I the only one who never heard this before? I always thought once they were wired in/had batteries and you tested them regularly they were good.


  • #5
    2011
    Moderators, Home & Garden Moderators, Technology & Internet Moderators, Regional East Moderators Posts: 12,641 Mod ✭✭✭✭2011


    Thoie wrote: »
    Am I the only one who never heard this before? I always thought once they were wired in/had batteries and you tested them regularly they were good.

    It’s nothing to do with the power supply, it’s due to the decay of a radioactive element within the detector.


  • #6
    2011
    Moderators, Home & Garden Moderators, Technology & Internet Moderators, Regional East Moderators Posts: 12,641 Mod ✭✭✭✭2011


    Risteard81 wrote: »
    It's generally 10 years.

    It varies. I was providing a conservative estimate.
    Nest are 7 years


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  • #7
    Thoie
    Registered Users, Registered Users 2 Posts: 6,344 ✭✭✭Thoie


    2011 wrote: »
    It’s nothing to do with the power supply, it’s due to the decay of a radioactive element within the detector.

    That's my point. We see fairly frequent ads about testing your alarm regularly etc, but I'm pretty safety conscious and don't think I've ever heard before that they have a lifespan. The ones in my last place were there 11 years, and probably still are.


  • #8
    2011
    Moderators, Home & Garden Moderators, Technology & Internet Moderators, Regional East Moderators Posts: 12,641 Mod ✭✭✭✭2011


    Thoie wrote: »
    That's my point. We see fairly frequent ads about testing your alarm regularly etc, but I'm pretty safety conscious and don't think I've ever heard before that they have a lifespan. The ones in my last place were there 11 years, and probably still are.

    It’s a fair point. I recommend Nest, they “inform” you via the app that they have expired.


  • #9
    Thoie
    Registered Users, Registered Users 2 Posts: 6,344 ✭✭✭Thoie


    2011 wrote: »
    It’s a fair point. I recommend Nest, they “inform” you via the app that they have expired.

    I moved into a new build last year, so know roughly when my current ones were first installed. I've just set a calendar reminder for 6 years to replace them.


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