NexSens CB450 buoys. Includes solar panals. Integration for AquaHub and atomospheric monitoring equipment (Wind speed, wind gust, wind direction, wave height, wave period, wave direction, current speed, current direction, air temp, air pressure, water temp @ 3ft, 7ft, 10ft, 13ft, 16ft, 20ft, 23ft, 26ft, 30ft).