Let A-LEC Electrical Ltd style and design, install and keep your fire alarm and crisis lighting devices. Ensure compliance with BS 5839 and keep the staff and premises guarded towards fire. The SBBRKSM easichange® kit replaces the discontinued BRK 660MBX optical and 670MBX ionisation smoke alarms and fits on to https://telebookmarks.com/story8820355/addressable-fire-alarm-control-panels-no-further-a-mystery