The Multipoint ASD is a plug-in type smoke detector that utilises a photo-electric sensing chamber to make a measurement corresponding to smoke density. The device also incorporates a thermistor sensing circuit to allow for accurate heat measurement. These elements allow the device to be configured to a smoke, heat or combined setting. Digital communication technology to the control panel is implemented allowing for accurate data transfer at high transmission speeds. This device is only compatible with the Sita200plus, Duonet and Quadnet ranges of control panels and may also incorporate a sounder or visual indication beacon (ignore all references to sounders/beacons if your device has no sounder/beacon).