Choice of up to 4 messages Extensive message library or bespoke messages available Download messages in-house via built in USB port Max 116dB (A) tone and 90dB (A) message outputs Automatic synchronisation Robust construction; IP66 rated for outdoor environments Volume control - 20dB Separate connections for sounder & beacon; Nexus Voice - Programming Guide Nexus Voice - Message List Nexus Voice - Data Sheet Nexus Voice - Instructions