Smoke alarms, also known as smoke detectors, are devices designed to alert people of potential fires by sensing smoke in the air. Other synonyms for smoke alarms include smoke sensors, fire alarms, fire detectors, and smoke monitors. Additionally, carbon monoxide detectors can also be considered a type of smoke alarm, as they detect dangerous levels of carbon monoxide gas which can be produced by fires. It is crucial to install these devices in homes and businesses to provide early warning in case of a fire, allowing for quick action to prevent loss of life and property damage.