![Do single station smoke alarms have low frequency sounders? | Affiliated Customer Service Inc. | Sales - Service - Testing - Inspection | Chicago, Illinois Do single station smoke alarms have low frequency sounders? | Affiliated Customer Service Inc. | Sales - Service - Testing - Inspection | Chicago, Illinois](http://www.affiliatedinc.com/wp-content/uploads/2016/06/Chirping-Detector-300x300.jpg)
Do single station smoke alarms have low frequency sounders? | Affiliated Customer Service Inc. | Sales - Service - Testing - Inspection | Chicago, Illinois
A single chirp from your smoke alarm every 30 or 60 seconds means the battery is low and must be changed. To avoid those annoying middle-of-the-night... | By Valley Regional Fire Authority
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