Nonetheless, with regards to the producer, scalability could be restricted by the most amount of gadgets that the system can aid or the maximum sign vary. FireCell is based on “Hub & Cluster” technology an EMS patented infrastructure which ensures optimum signal degrees and transmission, through any site or making. https://www.thesafetycentre.co.uk/blog/ems-wireless-firecell-systems-from-the-safety-centre/