Repeat measures 2 to four for all your outdated BRK alarms. We advise changing all alarms while in the method jointly to maintain optimum procedure Procedure; failing to take action might compromise interlink functionality. 02 would require to get up to date by thirtieth September 2021 in order to obtain https://www.firesense.co.uk/type/addressable-fire-system/addressable-fire-alarm-control-panels/