Crisis Notification: Fire alarm control panels are definitely the central hub for acquiring alerts from fire detection products for instance smoke detectors and warmth sensors. The SBBRKSM easichange® kit replaces the discontinued BRK 660MBX optical and 670MBX ionisation smoke alarms and fits on to your present BRK twist-match alarm baseplate https://www.firesense.co.uk/type/addressable-fire-system/addressable-fire-alarm-control-panels/