Fire alarms have been around forever.
In fact, the first alarm was invented in 1852 by Dr. William F. Channing and Moses Farmer. Their fire alarm included two boxes, each containing a telegraphic key with a handle. When someone detected a fire, they would crank the handle, which would then relay the details of the fire alarm box number to a central alarm station. The operator at the station would receive the message, which would then be forwarded to the fire department.
Advances in technology have helped fire alarm systems:
- notify authorities quicker
- accurately detect non-visible, yet devastating gases
- notify the blind
- provide escape directions
Technology is great, huh?
Let’s dive into each of these fire alarm technologies and how they are helping our world become a safer place: