Sounder, 110 dB, Atex, 24VDC, possibility to configure 32 different sounds, 3 externally selectable sounds. Sound synchronization with quartz stabilization. Adjustable volume ATEX approval and optionally IECEx. Die-cast aluminum housing LM6, ABS megaphone. Stainless steel mounting bracket for 360° positioning 2G and 3G categories (zones 1 and 2) and as 2D and 3D categories (zones 21 and 22) for dusty areas. IP 67. Temperature -50 to + 70º C. ATEX certificate and EN 54.3.