Repeat ways two to four for your whole aged BRK alarms. We recommend changing all alarms in the system together to maintain optimum system Procedure; failing to take action might compromise interlink effectiveness. Generate AUTOMATIONS & ROUTINES: Residence automation is the new standard; Arrange personalized automations and make your wired https://www.firesense.co.uk/type/addressable-fire-system/addressable-fire-alarm-control-panels/