The main purpose of a fire alarm is to detect smoke, heat, or flames and to alert occupants of a building to the presence of a potential fire. This early warning system is essential for ensuring the safety of individuals by providing them with the opportunity to evacuate in a timely manner. Fire alarms can be standalone units or integrated into a larger fire detection and suppression system, and they may include features such as visual alarms and emergency lighting. Regular maintenance and testing of fire alarms are crucial for ensuring their effectiveness, making them a key component of fire safety protocols.