The FST-951R clever addressable detector from Honeywell NOTIFIER attributes level ID ability that allows each detector address for being established with rotary tackle switches to deliver correct detector locations. Electrical power and connectivity come about in the imager only as well as the OSID-R only needs a solitary conventional reflector https://www.firesense.co.uk/type/addressable-fire-system/addressable-beam-detectors/