Why ‘jarring’ fire house sirens are being replaced with softer alarms

LocalHealth & Fitness
6 Mar 2026 • 11:44 PM MYT
The Independent
The Independent

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  • The Danbury Fire Department in Connecticut has implemented a new alarm system designed to reduce stress and improve response times for firefighters.
  • Launched in September, the system features alarms that gradually increase in volume and a calm, computerized voice announcing emergency details, replacing the previous jarring, high-volume alerts.
  • This gentler approach aims to mitigate the physiological stress on firefighters, as heart problems are the leading cause of on-duty deaths in the profession.
  • Danbury funded the approximately $500,000 Phoenix G2 system using money from the 2021 American Rescue Plan Act, joining thousands of other fire departments around the U.S. adopting similar technology.
  • Research supports the benefits of these progressive-volume alerts, with studies indicating they cause a lower increase in firefighters' heart rates compared to immediately loud alarms.

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