Fire alarms are devices designed to alert people when smoke or fire is detected in a building. They work by detecting either smoke, heat, or both and activating an audible, visual, and/or tactile warning signal. Fire alarms are typically connected to a fire alarm control panel, which is usually monitored by a fire alarm system. When a fire alarm is triggered, the control panel will initiate an alarm signal to alert occupants of the building and emergency services of the fire. Fire alarms may also be connected to emergency lighting and other safety systems to provide an effective response to a fire.
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