What device is used to alert occupants in case of fire?

The correct answer is a fire alarm notification appliance. This device is specifically designed to alert occupants in a building about the presence of a fire or other emergency situations. Fire alarm notification appliances can come in various forms such as horns, strobe lights, or speakers, and their primary function is to ensure that all individuals within the vicinity are promptly made aware of the danger, allowing them to take appropriate action, like evacuating the building.

While smoke detectors play a crucial role in fire detection by sensing smoke and triggering an alarm, they do not actively notify occupants through alert signals. Instead, they serve as an early warning system that communicates with the fire alarm control panel, which can then activate the notification appliances.

Fire suppression systems are designed to control or extinguish a fire, rather than to notify people about it. Their role is more about mitigating fire damage once a fire has started, rather than ensuring that people are aware of the situation.

Emergency exit lights assist with guiding people towards exits in case of an emergency but do not provide any indication of a fire or emergency situation. Their function is to illuminate exit paths and signage in low-visibility conditions, rather than to serve as a first line of notification.

Thus, the fire alarm notification appliance is the device