Our electricians are all totally qualified and experienced and all our function is accompanied by NIC EIC certification. The SBBRKSM easichange® kit replaces the discontinued BRK 660MBX optical and 670MBX ionisation smoke alarms and suits onto your existing BRK twist-in shape alarm baseplate so there's no want for almost any https://www.firesense.co.uk/type/addressable-fire-system/addressable-fire-alarm-control-panels/