Visibility & Present Weather Sensors FS11 & FS11P

Accurate weather observation data for runway visual range, aeronautical, and synoptical applications.

    Accurate Visibility Measurements

    Vaisala sensors FS11 and FS11P are forward scatter sensors that can be used in the most demanding weather situations. The

    FS11 measures visibility, while the FS11P additionally measures present weather.

    Both sensors provide accuracy, reliability, broad measurement range, and low maintenance in weather applications such as runway visual range (RVR), aeronautical and synoptical visibility, and present weather observation.

    To ensure reliable operations — even in the harshest weather conditions — the FS11 and FS11P utilize four main design features:

    • Window contamination compensation
    • “Head-down” optics
    • High-powered heaters
    • Optical path clearance monitoring

    FS11

    Designed according to ICAO, FAA, and WMO guidelines, the FS11 is an ideal instrument for runway visual range (RVR) assessment and airport visibility measurement, as well as other demanding applications. It provides the optimal combination of the best accuracy, the highest reliability, broad measurement range, and low maintenance needs.

    FS11P

    The FS11P offers traceable visibility measurement and precipitation type detection for runway visual range (RVR), aeronautical and synoptical visibility, and present weather observation for demanding weather applications.

    The sensor is designed to detect precipitation type and intensity and is the most widely proven forward scatter RVR sensor that is selected and used by the FAA. Additionally, it is the most widely proven present weather sensing technology.

    Vaisala team collaborating in office

    Get Started with Visibility and Present Weather Sensors FS11 and FS11P

    Contact Vaisala to learn more about the reliability and broad measurement ranges the FS11 and FS11P have to offer — and find out which model is right for your needs.
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