Addressable high power optical-acoustic alarm device, for VAD fire alarm signal, category O (Open class). Optical coverage O-5.5-3.2-7.7, volume 135m³. Sound pressure max. 118dB(A) @ 1m. Type B for outdoor use. Dual address for operation duplication. Programmable functions: 6 operating criteria, 64 sound modes, volume adjustment 2 levels, end-of-alarm tone, activation time and delay, flashing and/or acoustic signal can be excluded. Optical synchronised signaling. Signaling activation subject to formula. RSC® management: programming, remote management and control. Loop connection. Dual short-circuit isolator. External power supply 24V DC. Protection rating IP54. Operating temperature -25°C...+70°C. PC-ABS casing. White optical diffuser colour. Dimensions (L x H x D) 204 x 240 x 118.5mm. Approved EN 54-3:2001 + A1:2002 + A2:2006 - EN 54-23:2010 - EN 54-17:2005. Certification: 0051-CPR-3572.