how does automatic fire alarm work
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Contemporary fire alarm systems use automatic functions to detect the occurrence of an event that may result in a fire. They receive a signal from a fire sensor (smoke, heat or carbon monoxide detector) and automatically transmit it to the fire alarm panel.How Does Fire Alarm Systems Work? A fire alarm system is an active fire protection system that controls all the fire alarm modules in a building
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it just works in they it is supposed to work
the concept of thermal expansion of different Mattel's is used
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