
smoke alarm
A smoke alarm is a safety device designed to detect smoke particles in the air, indicating a potential fire. It contains sensors that sense smoke and trigger a loud alarm to alert occupants of danger. Smoke alarms are typically installed on ceilings or high on walls, as smoke rises. They help provide early warning, allowing people to evacuate promptly and reduce the risk of injury or death in a fire. Regular testing and battery replacement ensure they function effectively, making them an essential component of home safety systems.