A fire detection system (FDS) is an alarm system that receives data on, assesses and then responds to events reported by various ire detectors. Fire detection systems are permanently installed manual and automatic systems to detect ires at an early stage, warn those affected and quickly inform the relevant emergency service.

Fire detection systems are mostly installed in buildings particularly at risk such as airports, train stations, universities, schools, business and factory premises, residential homes for the elderly and hospitals. The building permit issued by the building inspectorate or the insurance cover speciied by the authority, states whether there is an obligation to install a ire detection system connected to the ire brigade.