The NX 450 Data Bouy is a rugged, single-person deployable platform for a wide range of below-water environmental sensors. Designed for the deployment in lakes, rivers, estuaries, harbours and sheltered coastal areas. Integrated data well for a wide range of data loggers and telemetry units. 104mm (4') pass thru and deployment tube. Rugged fibre-reinforced plastic inner and outer shell with marine-grade polyurethane foam core. Optional solar 4x 2.5 watt and non-solar tower. The NX Buoy is also available in the smaller NX 400 model, which is designed for short-term deployment in sheltered water ways, lakes, ponds, rivers and esturies.