If applicable, a releasing panel will activate relays to dispense pre-action sprinkler units or special hazard suppression for instance a chemical agent or h2o mist on to the shielded space. Standard fire alarm panels are commonly used in smaller sized structures or constructions. Every single zone while in the constructing https://www.firesense.co.uk/type/addressable-fire-system/addressable-fire-alarm-control-panels/