An advantage of beam detectors is their power to detect when smoke is scattered above wide regions. This really is realized a result of the beam detectors using the obscuration approach, which detects fireplace as a consequence of smoke particles obscuring the infra-purple light-weight alongside the sensing route. The 302-ET-194 https://www.firesense.co.uk/type/addressable-fire-system/addressable-beam-detectors/