What type of alarm system is designed to notify occupants of a potential fire in a building?

A smoke alarm system is specifically designed to detect smoke particles generated by a fire, thereby alerting occupants to the presence of a potential fire hazard. When smoke is detected, the system triggers an audible alarm, allowing people within the building to take necessary actions for their safety, such as evacuating and calling for assistance. Smoke alarms can be standalone units or integrated into a larger fire alarm system, providing essential early warning to prevent injury or loss of life.

In contrast, a heat alarm system is designed to respond to increases in temperature rather than smoke, which may not provide timely notification in all fire scenarios. An intruder alarm system is focused on detecting unauthorized entry into a property and does not relate to fire safety. A carbon monoxide detector system warns of dangerous carbon monoxide levels, which can be produced by incomplete combustion, but it does not indicate the presence of fire. Thus, among the choices, the smoke alarm system is the most appropriate for notifying occupants of potential fire.