The component of a fire alarm system that people are most familiar with is the detector. Although most consumers are familiar with the devices in their homes called smoke detectors, many would be surprised to find out that there are many different types of detectors on the market. These types of detectors vary in what they detect, how they detect it, how they are managed by the fire alarm system itself and how they are powered. Further, there are dozens of manufacturers of detectors and they vary widely in price, depending on their features and functions. As such, anyone looking for a detector for their fire alarm system is faced with a plethora of choices. (NOTE: Since all detectors begin the process of placing a fire alarm system into alarm mode, they are one of what may be several devices on the system known as Initiating Devices.)
The first decision to make when selecting a detector for a system is to determine what is to be detected. Fire detectors either detect smoke or heat. (You guessed it the former are called smoke detectors, the latter are called heat detectors.) Smoke detectors will go into alarm when a sufficient amount of smoke enters the chamber of the...
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