Fire alarm notification appliance
Device used to signal a fire-based or other emergency / From Wikipedia, the free encyclopedia
Dear Wikiwand AI, let's keep it short by simply answering these key questions:
Can you list the top facts and stats about Fire alarm notification appliance?
Summarize this article for a 10 year old
SHOW ALL QUESTIONS
For other uses, see Fire alarm (disambiguation).
A fire alarm notification appliance is an active fire protection component of a fire alarm system. A notification appliance may use audible, visible, or other stimuli to alert the occupants of a fire or other emergency condition requiring action. Audible appliances have been in use longer than any other method of notification. Initially, all appliances were either electromechanical horns or electric bells, which would later be replaced by electronic sounders. Most of today's appliances produce sound levels between 70 and 100 decibels at three feet.
This article needs additional citations for verification. (August 2007) |