The LPCB-authorized fire alarm system incorporates Fike’s Twinflex Multipoint ASD, combining smoke and warmth detection with the optional crafted-in sounder, allowing the complete system being set up utilizing just one pair of wires for every zone. The SBBRKSM easichange® package replaces the discontinued BRK 660MBX optical and 670MBX ionisation smoke https://www.firesense.co.uk/type/addressable-fire-system/addressable-fire-alarm-control-panels/