yes
They usually beep repeatedly, once every few seconds or once a minute to indicate the batteries are going dead. You should replace the batteries immediately.
Then it wouldn't be a smoke detector, but there are fire alarms that are triggered by temperature.
fire alarms blink to alert you that they are on and working. -SmartyPants11
Fire-Lite Alarms was created in 1952.
alot and i mean alot of americium and iron and metal for the sound too just to help out
In airports... During a fire-alarms...
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.
RED
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.
RED
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.