Occasionally called radio fire alarms, these devices utilise radio frequencies to deal with all connect with points, detectors, and alarm sounders. With no wires needed, time it will take to put in a wireless program is substantially reduced, in comparison to plain fire alarm methods. The panel is always on https://www.thesafetycentre.co.uk/blog/ems-wireless-firecell-systems-from-the-safety-centre/