required coverage area, it is necessary to select devices with optimal performance. 1. Pfannenberg’s EN 54-23 approved flashing lights provide a significantly larger coverage area than LED notification [...] required per square meter of effective coverage area is lower for the flashing lights. 2. Pfannenberg’s EN 54-3 approved sounders uti-lise electromagnetic sound capsule technology to deliver a superior notification [...] free Pfannenberg Sizing Software (PSS), planners, engineers, system integrators and construction companies can plan their fire alarm project easily, comprehensibly, and in compliance with codes & standards