Skills › 🔧 Home & car

Test a smoke alarm

A smoke alarm with a dead battery looks exactly like a working one. Ten seconds a month tells them apart.

⏱ 20s

  1. Press and hold the test button on the alarm until it sounds.
  2. Check the manufacture date on the back. Replace the whole alarm once it's 10 years old.

Tip: Change batteries at least once a year (when the clocks change is easy to remember). Sealed 10-year alarms don't need battery changes.

Try it now: Test the alarm nearest to you now, and put a monthly reminder in your phone.

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