The AARC-EVAC™ ARX70-FB Standalone Wireless Linked Emergency Alert
Siren & Message Broadcast Units, incorporates an Internal Speaker, in built Battery Backup UPS and Flashing Beacons . They are fully self contained making them ideal for use in locations where there is no existing
PA system, or to cover areas not serviced by a PA system or as a full
standalone network of units to provide for redundancy if the PA system fails for any reason.