An addressable smoke detector is an element of an addressable hearth alarm system that is made up of a gaggle of smoke detectors and gadgets connected to a central fireplace control panel. The 302-AW-135 Thermotech charge-anticipation heat detector from Honeywell NOTIFIER operates inside a controlled range of two to three https://www.firesense.co.uk/type/addressable-fire-system/addressable-beam-detectors/