Our expertise: ADT Self Setup's products and solutions are integrated with Google Nest, which manufactured it uncomplicated for us to established it up and hook up the process to our smartphones and various appropriate equipment. The SBBRKSM easichange® kit 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/