Test carbon monoxide detectors
Why it matters
Carbon monoxide is odorless and colorless — you won't know it's there without a working detector. CO poisoning causes thousands of hospitalizations and hundreds of deaths annually.
Stop forgetting to do this.
HomeOS generates a personalized maintenance schedule so you never miss another test carbon monoxide detectors.
How to do it
- 1
Hold the test button for 5–10 seconds.
- 2
The alarm should sound.
- 3
If the chirp is weak or absent, replace the battery.
- 4
Note: CO detectors also expire — check the label for replacement date (usually 5–7 years).