Xtralis is a leading world wide supplier of powerful alternatives to the very early & trusted detection of smoke, hearth, and fuel threats. Our technologies prevent disasters by offering customers time to reply before lifetime, vital infrastructure or business continuity is compromised. The 302-ET-194 Thermotech price-anticipation warmth detector from Honeywell https://www.firesense.co.uk/type/addressable-fire-system/addressable-beam-detectors/