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  2. Funny Aussie Dog Howls Like a Pro Every Time He Hears a Siren

    www.aol.com/funny-aussie-dog-howls-pro-160000520...

    Dogs howl at things for a number of different reasons, but when they howl at sirens it could be because they think it's the sound of other dogs howling in the distance. Some dogs do it to alert ...

  3. Emergency service response codes - Wikipedia

    en.wikipedia.org/wiki/Emergency_service_response...

    The use of flashing lights and sirens is colloquially known as blues and twos, which refers to the blue lights and the two-tone siren once commonplace (although most sirens now use a range of tones). In the UK, only blue lights are used to denote emergency vehicles (although other colours may be used as sidelights, stop indicators, etc.).

  4. Emergency population warning - Wikipedia

    en.wikipedia.org/wiki/Emergency_population_warning

    Public warning system siren in Dresden, Germany. An emergency population warning, or public warning system is a method where by local, regional, or national authorities can contact or notify members of the public to warn them of an impending emergency. These warnings may be necessary for a number of reasons, including:

  5. Rumbler siren - Wikipedia

    en.wikipedia.org/wiki/Rumbler_siren

    Rumbler siren. A Rumbler siren is a type of emergency vehicle siren used primarily in the United States.Developed in 2007 by Federal Signal Corporation, and sounding at a low-frequency level, it is designed to be heard by motorists who may otherwise be unable to hear high-frequency sirens due to ambient noise, such as urban traffic.

  6. Hawaii has a robust emergency siren warning system. It sat ...

    www.aol.com/hawaii-robust-emergency-siren...

    In fact, the state’s vaunted integrated outdoor siren warning system – the largest in the world, with about 400 alarms – was not activated during the fires, according to Hawaii Emergency ...

  7. Alarm device - Wikipedia

    en.wikipedia.org/wiki/Alarm_device

    civil defense siren, also known as tornado sirens or air raid sirens; fire alarm systems. fire alarm notification appliance "Multiple-alarm fire", a locally specific measure of the severity of a fire and the fire-department reaction required. smoke detector; car alarms; autodialer alarm, also known as community alarm; personal alarm

  8. Hear an outdoor emergency siren in the county? Here's ... - AOL

    www.aol.com/hear-outdoor-emergency-siren-county...

    According to Al "Buddy" Kirsits, director of the county's Emergency Management Agency, the sirens are more than just tornado sirens. "They're an early warning outdoor siren system," he said Monday.

  9. Long-range acoustic device - Wikipedia

    en.wikipedia.org/wiki/Long-range_acoustic_device

    The combined siren loudspeakers receive emergency messages via satellite and have backup batteries if the power fails. [96] The Mill Valley Fire Department began testing its city's new LRAD installations on June 27, 2019. LRAD systems project both siren and voice recordings to alert and inform community members during large-scale disasters.