How long will my smoke alarm last?

About eight to ten years, after which it should be replaced. Like most electrical devices, smoke alarms wear out. You may want to write the purchase date with a marker on the inside of your unit. That way, you'll know when to replace it. Always follow the manufacturer's instructions for replacement.

Show All Answers

1. Why should my home have smoke alarms?
2. Where do I put smoke detectors?
3. How do I keep my smoke detector working?
4. What if the alarm goes off while I'm cooking?
5. How long will my smoke alarm last?
6. Anything else I should know about smoke detectors?