Signal towers, also known as stacking beacons, are essential for safety in industrial areas or in public spaces, as they provide protection and a reliable visual warning for workers and passers-by. In both indoor and outdoor industrial applications in particular, signal towers contribute to workplace safety by indicating various machinery and system operating states. These signalling devices can, of course, also be used in other scenarios. The benefit of Compro signal towers is that they can be fully configured to individual requirements.