A fire alarm system working takes place with a mixture of the number of devices, to detect and warn people through audio and visual appliances when, fire,
A fire alarm system working takes place with a mixture of the number of devices, to detect and warn people through audio and visual appliances when, fire, smoke, carbon monoxide, or other emergencies occur. Fire alarm systems include such as fire alarm sounders, fire manual call points, fire detector heads, fire control panels, and other systems.