Let A-LEC Electrical Ltd style and design, install and retain your fire alarm and emergency lights devices. Make certain compliance with BS 5839 and keep the workers and premises shielded from fire. The SBBRKSM easichange® package replaces the discontinued BRK 660MBX optical and 670MBX ionisation smoke alarms and fits onto https://www.firesense.co.uk/type/addressable-fire-system/addressable-fire-alarm-control-panels/