"For accurate visibility measurement","Sensors designed for a variety of visibility measurement applications, including: road weather, waterway visibility measurement, and wind turbine applications such as obstruction light control.","Features • Robust and versatile • Accurate measurement of visibility","Key Benefits"," • Accurate and traceable • PWD sensors use the proven forward-scatter measurement principle to measure meteorological optical range (MOR). • Easy installation • All Vaisala's PWD sensors are compact (less than one meter long), light-weight, and come with a cable and connector for easy installation, which can be mounted in multiple ways on any existing mast. • PWD20W - ideal for wind turbine applications • The challenging conditions on top of a wind turbine require a robust and reliable device like the Visibility Sensor PWD20W, which cost-effectively supports obstruction light control and a range of other wind applications."
