Our encounter: ADT Self Setup's products are built-in with Google Nest, which produced it quick for us to set it up and link the process to our smartphones and also other suitable equipment. The SBBRKSM easichange® package replaces the discontinued BRK 660MBX optical and 670MBX ionisation smoke alarms and fits https://www.firesense.co.uk/type/addressable-fire-system/addressable-fire-alarm-control-panels/