Alarm- the word alarm frightens everyone. bcoz it occurs when there is emergency situations. Fire alarm system are important in buildings to prompt warning if a fire occurs. A fire alarm is a unit made of several devices, which uses visual and audio signalization to warm people about a possible fire alarm systems to provide zonal coverage for residences and  commercial buildings

Fire alarms are important because they can alert you an early signal to something that could be tragic, basically saving your lives. A fire alarm alert you when they you are busy, working or sleep.