EarthYP Edge Conference in Maui, Hawaii

5112 77th Pl NE
Marysville, WA 98270
(425) 953-4344

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Fire alarm system
From Wikipedia, the free encyclopedia
A fire alarm system warns people when smoke, fire, carbon monoxide or other fire-related emergencies are detected. These alarms may be activated automatically from smoke detectors, and heat detectors or may also be activated via manual fire alarm activation devices such as manual call points or pull stations. Alarms can be either motorized bells or wall mountable sounders or horns. They can also be speaker strobes which sound an alarm, followed by a voice evacuation message which warns people inside the building not to use the elevators. Fire alarm sounders can be set to certain frequencies and different tones including low, medium and high, depending on the country and manufacturer of the device.
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EarthYP Edge Conference in Maui, Hawaii