The W.E.N.S. 51-P System is a wireless emergency notification system that uses an 8x 30 watt speaker array with a 240 watt amplifier mounted on a 6m mast. It has a radio range of 6km for transmission and reception, adjustable coverage from 45 to 360 degrees, and can reach sound pressure levels of 122dB at 1w/m with audio coverage over 250m at 360 degrees. The system includes 16 channel radio communication, 4 channels for prerecorded messages, a local paging microphone, solar power with batteries, and is designed for industrial and event applications.