The FST-951R clever addressable detector from Honeywell NOTIFIER attributes position ID ability that allows each detector deal with to get established with rotary handle switches to provide exact detector places. The FSP-951 photoelectric detector’s unique optical sensing chamber is engineered to feeling smoke made by a wide range of combustion https://www.firesense.co.uk/type/addressable-fire-system/addressable-beam-detectors/