High-power addressed optical-acoustic warning device for signalling fire alarms VAD, category O (Open class). Optical coverage O-5.5-3.2-7.7, volume 135 m3. Sound pressure 112dB(A)@1m. Type B for outdoors. Double address for duplication of operation. Programmable functions: 6 operating criteria, 64 sound modes, 2 volume levels, end-of-alarm tone, activation delay and time, flashing and/or acoustic signal that can be excluded. Signalling synchronizedopticalion. Implementation of signaling subject to formula. RSC® management: programming, remote management and control. Connection on loop. Double line isolator. Power supply from external 24 VDC source. Degree of protection IP54. Operating temperature -25°C…+70°C. Container PC-ABS. Color of optical diffuser white. Dimensions (WxHxD) 204x240x118.5 mm. Compliant with EN54-3:2001+A1:2002+A2:2006-EN54-23:2010-EN54-17:2005. Approval certificate: 0051-CPR-3572.