Why do smoke alarms only last 10 years?
The 10 year lifespan of a smoke alarm is a recommendation made by fire authorities because they are a life saving device. PSA alarms are designed to last well past the 10 year mark, but because the chances electronics failing increases as they age, 10 years is the decided time in which they should be replaced.
Remember, Smoke alarms are a lifesaving device, you don't want to risk them not working when they need to.
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