Fire Alarm System Components:

The following overviews common components of a Fire Alarm system that can work together with or instead of fire supression systems:

Smoke Detectors can sense the presence of smoke and are located at regular intervals on the ceiling of a building or area.

Heat Detectors can sense excessive heat and can be used to detect fire in high-humidity and/or high-contaminant areas where smoke detectors will not be accurate, such as kitchens, painting booths, etc.

HVAC Duct-Detectors can sense the presence of smoke in a HVAC duct. Duct Smoke Detectors and a required for larger HVAC systems.

Fire Pull Stations allow users alert an entire building of people of a fire condition. Thus, pull stations are located beside every exit from a building. Since these pull stations can activate release of all building doors, it is a very good idea to have cameras positioned on them to prove who pulled the alarm. These cameras would also capture who exited the building and when, allowing identification of those likely to have left the building with property.

Horn-Strobes provide audible and visual indications of a fire alarm. 

Strobes provide bright strobe-light-only indicatons of a fire alarm and are used in smaller rooms, (such as a bathroom), where a loud horn could cause hearing damage.

Fire Alarm Bells are commonly used on the exterior of a building to alert people in the area to the risk of fire. Bells also help Fire Department personnel quickly find the specific building at risk.

Fire Keypads can indicate exactly where the fire was detected and help Fire Department personnel quickly find the specific area suspected of fire.

Access Control Integration is commonly required by local fire codes in order to prevent exit restrictions in the event of a fire or other evacuation emergency. In the event of a fire alarm, The Fire Control System triggers the Access Control System to release all doors.