What does it mean when my smoke alarm is chirping every minute or so?

Smoke alarms have a built-in feature to alert a homeowner when the battery is dying, or the smoke alarm is nearing the end of its’ useful life. The best way to prevent this chirping is to proactively change your smoke alarm battery at least once per year and replace the smoke alarm after it has been in service for 10 years.

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1. What should I do when I’m driving and an emergency vehicle with lights and sirens operating is behind me?
2. Why does a fire engine come when I call 911 for an ambulance?
3. What is happening when an emergency vehicle with lights and sirens operating turns them off and slows down?
4. How should I dispose of unused prescription medicines?
5. How come I see firefighters shopping at the grocery store?
6. What does a firefighter do when they aren’t responding to emergency calls?
7. What type of fire extinguisher should I purchase for my home?
8. What should I know about smoke alarms?
9. What does it mean when my smoke alarm is chirping every minute or so?