In a multi-room home, a fire rarely stays in one place, and neither should the warning. Interconnected smoke alarms trigger simultaneously, so when one detects smoke, every alarm in the house sounds. That early, whole-home alert can mean the difference between safe evacuation and dangerous delay. For families living in larger homes, double-storey properties, or houses with closed-off bedrooms, interconnected smoke alarms dramatically improve response time, awareness, and overall fire safety.