Why does my smoke alarm sound when it’s cold outside?
Your smoke alarm may sound when it’s very cold outside, or if a door adjacent to a heated area is opened, like in an entryway. This is due to condensation (water vapor) in the detection chamber. The sensor is a particle sensing device; when water condenses in the sensor the unit will go into alarm. The operating temperature of a smoke alarm is between 40 and 100 degrees Fahrenheit (4-38 degrees Celsius). If the unit is in a garage or attic, you should consider replacing it with a heat alarm which is not affected by condensation.

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1. Where do I place smoke detectors in my home?
2. Does the Fire Department install/inspect infant and child car seats?
3. If my carbon monoxide detector activates, what should I do?
4. How often should I change my smoke detector batteries?
5. What is Macomb Townships ISO Public Protection Classification?
6. Why does my smoke alarm sound when it’s cold outside?
7. How many fire stations are in Macomb Township?