Fire Alarm Initiating Devices
A smoke detector is a life safety device that provides early fire warning to occupants of a building. It triggers when smoke enters the chamber of the detector, causing it to latch and send a signal to a main fire alarm control panel. The control panel then alerts the building that a smoke condition is present and signals to the central monitoring station.
Smoke detectors are required in fire alarm protected commercial buildings in areas where sprinklers are not present. Also, a smoke detector is always required at the main fire alarm control panel to ensure at least one signal can occur to the central monitoring facility.