How old are your smoke alarms?

It is recommended by Australian Standards and Fire Departments that smoke alarms be replaced after 10 years.

Both hard-wired and battery operated smoke alarms are manufactured to have a recommended service life of at least 10 years under normal conditions of use (AS3786)

After 10 years smoke alarms may malfunction and their efficiency compromised with accumulated dust, insects, airborne contaminents and corrosion of electrical circuitry.

A smoke alarm constantly monitors the air 24 hours a day. At the end of 10 years, it has gone through millions of monitoring cycles. After this much use, components may become less reliable. This means that as the smoke alarm gets older, the potential of failing to detect a fire increases.

Click here for Smoke Alarm FAQs


  1. Seb R says:

    Change every 10 years…I am lucky if I get 2 years out of a smoke alarm, such is the low quality standards manufacturers these days seem to get away with. I have had now my second ‘Lifesaver’ fail within 2 years of installation.

    • Michael Silva says:

      Yes I am in a similar boat mine are 5 years old now and started alarming again for no apparent reason. It’s the second time I got 5 years out of your products. Why is that PSA?

      • psaprod says:

        Hi Michael,

        Sorry to hear that your smoke alarm is alarming for no reason after 5 years. There could be many environmental reasons which cause this, please give us a call on 1300 772 776 to discuss your issue, our Technical Team will be able to assist you. It is unusual that you have had the same issue every 5 years, we would like to investigate this further.

        Kind Regards
        PSA Products

    • psaprod says:

      Hi Seb,

      Are you using our PSA LIFESAVER brand of smoke alarms? If you are, there is a 5 year warranty on them based on the date of manufacture or date of purchase. Please call us on 1300 772 776 and speak to our Technical Team to discuss your issue.

      Kind Regards
      PSA Products

  2. Andrew says:

    The smoke alarms should be replaced every 10 years but I don’t think wireless smoke detector can survive that long. so all wireless smoke detectors should be replaced within 6-7 years.

    • psaprod says:

      Hi John,

      Unfortunately because the LIF1255 is so old, we have since designed new smoke alarms with better features and a different look. We would definitely recommend that you have the whole smoke alarm replaced by an electrician as your smoke alarm would be over 10 years old. You can replace the smoke alarm with our latest models HG2000, LIF5800/2 or LIF5800RL/2. You can purchase our smoke alarms at these stores

      Kind Regards

    • psaprod says:

      Hi JD,

      Yes, definitely replace the LIF1275, this model would be almost 20 years old by now. Unfortunately the newer models will not fit on the same base plate as the LIF1275 so you will need an electrician to replace it with either the LIF5800/2 (240V with 9V Battery Back Up) or LIF5800RL/2 (240V with Rechargeable lithium battery).

      If you have any other queries, please contact us on (03) 9888 9889.

      Thank you
      PSA Products

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