The Lufft sensors from the WS-product family are in operation in airports worldwide for real-time weather observations.
Additionally, the active and passive road/runway sensors (IRS21-UMB, IRS31-UMB and the ARS31-UMB) are in use on runways for measurement of water film height or road surface temperature and freezing temperature.
References for photos in carousel at left.
Airport Frankfurt/Hahn
Airport Düsseldorf, Germany
Airport Paderborn, Germany
Airport Turin, Italy
Many Airports in Belgium including Belgocontrol