This wireless interconnection gets rid of the necessity for hardwired connections between floors or distant rooms, rendering it ideal for more mature houses without the need of current alarm wiring. Most radio-interlinked alarms have a range of 150 meters in an open space and as much as 50 meters in https://www.thesafetycentre.co.uk/blog/ems-wireless-firecell-systems-from-the-safety-centre/