Fire Alarm Apparatus

Fire alarm devices are hardware components that detect, signal, or control a fire emergency. These devices sense signs of a fire and send a signal to the control panel:

• Smoke Detectors
• Heat Detector
• Gas and Carbon Monoxide Detectors
• Manual Call Points / Pull Stations
• Flow and Tamper Switches

Fire Alarm Control Panel (FACP): The central unit that receives input signals, runs diagnostics, reports system status (Alarm, Trouble, or Supervisory), and drives outputs. Systems can be conventional (zone-based), addressable (pinpoints exact device locations), or wireless.

Notification Appliances (Outputs)

These devices alert people nearby to evacuate:

• Audible Devices: Horns, sirens, chimes, bells, and built-in speakers.
• Visual Devices: Flashing LED or strobe lights.

Building Safety Interfaces

• Relays and controllers that automatically shut down HVAC systems, recall elevators to safe floors, release magnetic door holders, or activate smoke dampers.