The FST-951R smart addressable detector from Honeywell NOTIFIER capabilities issue ID capacity that enables Every detector address to get established with rotary handle switches to deliver correct detector destinations. The FSP-951 photoelectric detector’s exceptional optical sensing chamber is engineered to perception smoke made by a wide range of combustion sources. https://www.firesense.co.uk/type/addressable-fire-system/addressable-beam-detectors/