The FST-951R clever addressable detector from Honeywell NOTIFIER features level ID ability that allows each detector deal with for being established with rotary tackle switches to deliver exact detector locations. The FSP-951 photoelectric detector’s distinctive optical sensing chamber is engineered to feeling smoke made by a variety of combustion resources. https://www.firesense.co.uk/type/addressable-fire-system/addressable-beam-detectors/