Most radio-interlinked methods can link up to 15 alarms in an individual community, supplying complete coverage for greater Homes with a number of floors and rooms. Most radio-interlinked alarms have A selection of 150 meters in an open Area and around 50 meters in structures. The thickness on the walls https://www.thesafetycentre.co.uk/blog/ems-wireless-firecell-systems-from-the-safety-centre/