The AARC-EVAC™ ARX92-W-FB, ARX93-W-FB & ARX94-W-FB Outdoor, Solar,
Standalone Wireless Linked Emergency Alert Siren & Message Broadcast Units,
incorporates an in-built Battery Backup UPS with a Solar Power Supply 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.