Add Yahoo as a preferred source to see more of our stories on Google. What does a 12-alarm fire mean? How alarm levels in firefighting work The devastating fire in Belleville reached 12 alarms, but ...

Each home security system has its own set of cues and meanings, and you'll need to consult with your manual to work them out. There are, however, a few universal warning sounds used for most household ...

The devastating fire in Belleville reached 12 alarms, but what exactly does that mean? When officials say a blaze "escalated to a 12-alarm fire," the phrase can sound dramatic but for many, the ...