The main applications of wind measurement are in the field of meteorology and industrial applications such as in wind turbine business. In order to design a profitable wind farm, the local wind conditions are measured to perform a detailed wind site assessment. Once the wind farm is set up and running, its best performance has to be ensured. Thus wind measurement does not stop with connecting the wind farm to the grid. Long service life, reliability and functionality under extreme conditions are the most important requirements in almost every application, which our sensors fulfil.