With built-in Degraded Mode operation, the system is capable of general alarm if a fire alarm condition is present even if the central processing unit (CPU) fails In accordance with the Countrywide Fireplace Alarm and Signaling Code, a lot of the above are “hearth security capabilities” intended to boost occupants’ https://www.firesense.co.uk/type/addressable-fire-system/addressable-beam-detectors/