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StaRWIS-UMB - Stationary Road Weather Information Sensor

For stationary operations we further developed the innovation award-winning mobile road weather Sensor MARWIS - this is StaRWIS!

StaRWIS is the first non-invasive road weather sensor detecting road and runway surface conditions, surface temperatures, relative humidity, dew point temperatures, ice percentages as well as friction non-invasively and based on innovative LED Technology with 4 lenses.

  • Road condition (dry, moist, wet, ice, snow, slush, chemically wet), road surface temperature, water film height, dew point temperature, relative humidity, ice percentage, friction (calculated)
  • Optical LED transmitters, photo receivers, pyrometer, infrared
  • non-invasive, plug and play, 100 measurement per second, multifunctional, wireless data transfer, no moving parts
  • Bluetooth, RS485, CAN-Bus, UMB - protocol
  • 8711.U55
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Advantages of the stationary non-invasive road sensor StaRWIS

  • No moving parts due to award-winning and innovative LED Technology
  • Non-invasive measurement principle
  • Data transfer via Bluetooth, RS485 or CAN-Bus
  • Mulifunctionality
  • Measurements both on the ground and in the ambient air
  • Easy to install and to clean

Examples of use of the stationary non-invasive road sensor StaRWIS

  • Decision support for winter maintenance operators on roads, motorways, highways (municipalities, federal states and provinces)
  • Decision support for the de-icing of runways (higher efficiency)
  • As important part of the IDS (Ice Detection System) in form of a RCC (Runway Condition Code), water film height (aqua-planning risk) and friction detector on airports (digital alternative to mechanic grip testers)
  • For smart city applications
  • For weather data collection and weather forecast model improvements
Brochure - Lufft - Image brochure (EN)
Image Brochure with description of all Lufft market segments
Brochure - Lufft - MARWIS (EN)
Brochure - Lufft - Weather Critical Operations (EN)
Traffic weather, renewable energies and more
EU declaration of conformity - Lufft MARWIS and StaRWIS
EU declaration of conformity - Lufft MARWIS and StaRWIS
Firmware - Lufft - MARWIS / StaRWIS
Version 44
Manual - Lufft - MARWIS / StaRWIS (EN)
Manual - Lufft UMB Protocol (EN)
Quickstart - Lufft - StaRWIS - Road Sensor (DE/EN)
RoHS - Declaration of Conformity / Konformitätserklärung - MARWIS / StaRWIS
Software - Lufft - ConfigTool .NET
Version 1.5
Software - UMB Config Tool
Whitepaper - Road Weather Selection Guide
The Whole World of Road Weather Monitoring
Video - Lufft: a passion for precision (Corporate Video)
Video - ViewMondo Tutorial: The Management Software for Road Weather Stations
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Dimensions Height approx. 110 mm, width approx. 200mm, depth approx. 100mm
Weight 1.7kg
Admissible storage temperature -40...70°C
Operating rel. humidity <95% relative humidity non-condensing
Operating voltage 10VDC...28VDC on the sensor
Power consumption Approx. 3VA without heating, 50VA with heating
Operating temperature -40...60°C
Operating rel. humidity 0...100% RH
Protection type IP68
Surface conditions Dry, damp, wet, snow-/ice-covered, chemically wet, critically wet
Admissible height above absolute altitude 3000m
Interface RS485, 2 wire, half duplex, bluetooth, CAN
Road surface temperature
Principle Optical
Measuring range -40 ... 70 °C
Unit °C
Accuracy ± 0.8°C@0°C
Resolution 0.1 °C
Relative humidity above road surface
Measuring range 0 ... 100 %
Unit %
Resolution 0.1 %
Principle passive, calculated out of air temperature and humidity above road surface
Dew point temperature
Measuring range -50 ... 60 °C
Unit °C
Resolution 0.1 °C
Principle passive, calculated out of air temperature and humidity
Waterfilm height
Principle Optical
Measuring range 0 ... 6000 µm
Unit µm
Resolution 1 µm
Ice Percentage
Measuring range 0 ... 100 %
Unit %
Resolution 1%
Measuring range 0 ... 1
Resolution 0.01
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