The beam operates totally on the theory of light obscuration making use of infrared. The OSI-RI detector is actually a blended transmitter/receiver which can be immediately connected to an intelligent detector circuit in LiteSpeed® or CLIP mode. The 302-ET-194 Thermotech level-anticipation heat detector from Honeywell NOTIFIER operates within a controlled https://www.firesense.co.uk/type/addressable-fire-system/addressable-beam-detectors/