The beam operates primarily on the basic principle of sunshine obscuration making use of infrared. The OSI-RI detector is actually a combined transmitter/receiver that can be instantly linked to an intelligent detector circuit in LiteSpeed® or CLIP mode. The 302-ET-194 Thermotech charge-anticipation heat detector from Honeywell NOTIFIER operates inside of https://www.firesense.co.uk/type/addressable-fire-system/addressable-beam-detectors/