Test Smoke and CO Detectors
Test all smoke detectors and carbon monoxide detectors and replace batteries.
DIY Cost
$10
If Ignored
$0
Frequency
Twice a year
Difficulty
Easy DIY
Most homeowners can handle this in under an hour with basic tools.
How to do it — step by step
Press the test button on each smoke and CO detector. If it doesn't beep, replace the batteries immediately. Most detectors need battery replacement annually — do it every time you change your clocks (spring/fall). Smoke detectors older than 10 years should be fully replaced regardless of function. Carbon monoxide is odorless and can be fatal — working detectors save lives.
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