Sometimes referred to as radio fire alarms, these devices utilise radio frequencies to deal with all phone points, detectors, and alarm sounders. Without wires essential, some time it will take to put in a wireless program is significantly diminished, when compared to plain fire alarm units. Up to 126 wireless https://www.thesafetycentre.co.uk/blog/ems-wireless-firecell-systems-from-the-safety-centre/