When a building is not sprinkled throughout then an automatic detection system may be required. This system typically consists of smoke detectors and heat detectors spaced in accordance with NFPA standards, manual pull stations (may or may not be required - consult AHJ), horn strobes and strobes placed in accordance with NFPA standards. These systems are designed to automatically detect the presence of heat or smoke and to trigger an alarm at the fire panel and trigger the horns and strobes.
This type of system is typically monitored by a UL Listed Central Station per code.
