"Accurate and traceable measurement of prevailing visibility","PWD50 offers perfect solutions for a variety of visibility measurement applications e.g. meteorological weather stations, heliports, offshore and maritime visibility measurement.","Features  • Accurate, traceable measurement of prevailing visibility  • Robust and dependable","Key Benefits"," • Versatile and easy to install; easy to integrate   • The PWD50 architecture allows for easy integration to existing or newly designed systems in a cost-efficient manner. The sensor can be mounted in many ways on existing masts.  • Weather-proof design reduces need for maintenance   • The downward-facing sensor hoods protect the optical surfaces from contamination, resulting in low maintenance needs and costs.  • Wherever visibility measurement is needed   • Long-range visibility measurement for diverse applications covering harbors, coastal areas, heliports, wind turbine applications – indeed, any locations or areas where visibility measurement is necessary."