AhaBulbStuff Everyone Should Know
AhaBulb: Stuff Everyone Should Know · ahabulb.com/smoke-alarm-10-years

How often do you replace the smoke alarm itself, not just the battery?

Every 10 years. Test it monthly.

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The Just Right card

Too littleWhen it stops chirping
Too muchEvery year
Just rightEvery 10 years

Huh, didn't know that: The date the alarm was made is printed on the back.

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Why did the firefighter wear red suspenders? To keep his pants up.
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References

Answer: Every 10 years. The sensors wear out with age. Replace the whole alarm every 10 years and push the test button once a month. The date it was made is printed on the back.

  1. U.S. Fire Administration smoke alarm guidance www.usfa.fema.gov/prevention/home-fires/prepare-for-fire/smoke-alarms/index.html
    Age matters when it comes to smoke alarms. They need to be replaced 10 years from the manufacture date.
    Checked 2026-10-09.
  2. Kidde manufacture date location www.kidde.com/support/smoke-alarms/manufacture-date-location
    The manufacture date code is stamped on the label located on the back of the alarm.
    Checked 2026-10-09.

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