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- Dictionaryfire alarm
noun
- 1. a device making a loud noise that gives warning of a fire: "a fire alarm went off and the building had to be evacuated"
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- Fire alarm system
A system, that works using multiple devices to warn of an emergency.
A fire alarm system is a building system designed to detect, alert occupants, and alert emergency forces of the presence of fire, smoke, carbon monoxide, or other fire-related emergencies. Fire alarm systems are required in most commercial buildings. They may include smoke detectors, heat detectors, and manual fire alarm activation devices (pull stations). All components of a fire alarm system are... Wikipedia
