Income SAVING Household IMPROVEMENT: With Konnected, you lower your expenses by reusing Anything you now possess; our alarm panels Do not demand a battery (use integrated energy adapter), regular monthly subscription or a standard keypad The SBBRKSM easichange® package replaces the discontinued BRK 660MBX optical and 670MBX ionisation smoke alarms https://www.firesense.co.uk/type/addressable-fire-system/addressable-fire-alarm-control-panels/