How long will my smoke detector last?

About 8 to 10 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.

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1. Why should my home have smoke alarms?
2. Where do I put them?
3. Where do I purchase smoke alarms?
4. Are smoke alarms difficult to install?
5. How do I keep my smoke alarms working?
6. What if the alarm goes off when I am cooking?
7. How long will my smoke detector last?
8. Anything else I should know?