fire alarms blink to alert you that they are on and working. -SmartyPants11
Fire-Lite Alarms was created in 1952.
Firestore.com and firstalertstore.com are both place where you can purchase fire alarms in bulk online. You can also purchase 3 packs of fire alarms from you local Home Depot.
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Some fire alarms are susceptible to false alarms under conditions that do not include fires, such as steam or dust and sometimes power glitches. False alarms can be annoying but are also dangerous because people start to ignore them or move more slowly, meaning they could be caught in a real fire before they discover the mistake.
Fire alarms chirp intermittently to indicate a low battery or a malfunction in the system.
Some fire stations offer smoke alarms at little or no cost. Fire stations always have smoke alarms available, to make sure that there community is kept safe.
On average, fire services in the United States respond to about 2 million false alarms each year. This can account for up to 10-20% of their total call volume.
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Fire Dept.
False Friends and Fire Alarms - 1916 was released on: USA: 8 March 1916
The fire alarms emit a pitch high enough to know that when you hear it, you need to get out of whatever building you are in. The alarm is not a musical instrument, by the way.