English HOME WEATHER INDUSTRIAL MEASUREMENTS LIFE SCIENCE PRODUCTS AND SERVICES CAREERS INVESTORS ABOUT US Defense Weather Contact Us Services Products Automatic weather stations Aviation Weather Systems and Sensors Lightning Detection Meteorological and Hydrological Data Management Systems Sounding Equipment Weather Instruments PTB330 CL31 HMP155 PWD22/52 Present Weather Detectors WXT520 WMT700 WMT52 WA15 Wind Set LT31 Transmissometer FS11 Visibility Sensor LM21 Background Luminance Sensor DRS511 Runway Surface Sensor FS11P Weather Radar Home > Defense > Products > Weather instruments > Vaisala Road / Runway Surface and Depth Sensor DRS511 Vaisala Road / Runway Surface and Depth Sensor DRS511 Overview Related Services Documents Overview Several measurements combined compactly in one sensor: Surface Temperature Sensor Ground Temperature Sensor at 60mm depth Additional Depth Temperature Sensor at 300mm depth Depression of Freezing Point / Chemical Amount Black Ice Detection Surface State; (water / ice layer thickness, presence of snow): Dry Moist Wet Frost Ice Snow Trace (Moist & Treated) Wet & Treated Alarms and Warnings Rain Warning Frost Warning Ice Warning Ice Alarm Thermally passive principle - does not disturb the measured surface Thermal properties matched to road properties 3cm wide so thermal characteristics adjust to match the road very quickly - improved accuracy Robust epoxy design; the sensor may wear down by as much as 35mm Can be installed in wheel track Get Support Contact HelpdeskReturn products for serviceService centersDownloads Contact Sales inquiriesTechnical supportInvestor relationsMedia and PROffice locationsService centers Meet EventsTrainingWebinarsInvestor calendar About Vaisala PressInvestorsCorporateCareersSustainability Interact Subscribe to eNewsletterBecome a fan on FacebookJoin Vaisala on TwitterWatch on YouTubeCheck us on Pinterest Copyright © Vaisala 2014Privacy PolicyLegal NoticeConditions of Sale and ServiceSitemap