Road Weather

Wide Range of Sensors and Measurement Parameters

The OTT HydroMet brand Lufft has been developing and producing state-of-the-art traffic weather sensors for over 20 years. They are implemented in Ice Detection Systems (IDS) and Traffic Control or Traffic Management Systems (TMS) to keep roads free from snow, ice or water film layers to protect us from dangerous traffic situations.

LUFFT MARWIS on Tour - The Mobile Road Weather Sensor - Product movie

A lot of technology monitors the weather on the lifelines of our civilization. However, there are huge gaps in the measuring networks, making error-free forecasts impossible even with a great deal of experience and sensitivity. More closely meshed monitoring networks? Much too expensive. An affordable technology that would close all these gaps would be like a miracle.

And here's the miracle: MARWIS - Lufft's first mobile road weather sensor.

MARWIS Tutorial: From installation to start-up | First Steps

In this short movie our service expert Manuel Kreissig shows you the first steps to install and run the mobile road sensor MARWIS with your car. More information about MARWIS

Further Road Weather Related Resources

10 Year Anniversary of the Lufft WS Product Family

The Lufft WS family changed the way of weather monitoring as it was the first series of compact weather sensors combining several sensors in one housing. From then on, users such as weather services and departments were able to monitor all necessary weather parameters simultaneously. In the video and the eBook, we review our experience with the WS family models, show their fields of application as well as the largest projects and address their benefits.


The Lufft WS100 Radar Precipitation Sensor Guide

The Lufft WS100 is a radar precipitation sensor with adjustable heating. It measures the speed of all forms of condensed water. These include rain, freezing rain, hail, snow and sleet. Due to its maintenance-free operation, the intelligent sensor is especially suitable for places and recording areas that are difficult to access. Its possible uses are nearly unlimited. Learn more in the sensor guide:


Lufft Academy: MARWIS in Action - Applications with the mobile road sensor

In the webinar "MARWIS in Action: Applications with the mobile road sensor", we present the different applications of our mobile weather sensor MARWIS

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iPad App for mobile road sensor MARWIS

This video shows the first steps to get the MARWIS app started: 1. step: Power connection; 2. step: Bluetooth pairing; 3. step: Start Marwis app.

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MARWIS Hitch Fixture Tutorial

This short videos presents a new fixture to attach the mobile road & runway weather sensor MARWIS to a hitch.

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Manage your critical road weather conditions

Our customers from highway authorities and local authorities have experienced the safety and efficiency improvements that are delivered by OTT HydroMet systems. They confirm, they were able to improve predictability and reduce accidents due to icy, foggy or wet conditions. 


Maryland DOT relies on mobile sensing from Lufft

50 mobile road sensors MARWIS to equip the control vehicles of Maryland Department of Transportation with a goal to fill the data gaps and support decision making in winter maintenance. Learn more in the case study:


Whitepaper: Is your Traffic Management Future-Proof?

The increase of weather fluctuations and extreme weather events present a significant challenge to those responsible for keeping roads safe and passable. Accurate traffic weather information is key to efficient decision-making.


Training: Installation of Lufft Road Sensors IRS31Pro and ARS31

In this Training Video, our service technician Jim Latimer explains, how to install Lufft Road Sensors.

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LufftAcademy - Calibration of the Road Sensor IRS31 – UMB

Webinar about calibration of water film level and freeze temperature of the Lufft road sensor IRS31 - UMB. In addition, you can see how to install a new sensor in case of recalibration.

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LufftAcademy - Webinar - Road sensor IRSPro–UMB

The must-know about our new sensor for road surface conditions measurements. In addition the presentation of technical specifications, our service expert Manuel Kreissig will show you product features and applications.

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ViewMondo Tutorial: The Management Software for Road Weather Stations

In this short software training we show you all important functions of the ViewMondo road weather management software. It is suitable for both fixed and mobile road weather stations. Watch this video and see how user-friendly it is.

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Lufft Sensor NIRS31 Product movie

Intelligent Lufft sensors with optical measuring principle do not detect you, but the road condition directly in front of you on asphalt or concrete, so that neither ice and snow nor hydroplaning will throw you off track.


LufftAcademy Webinar: Must-know about contact-free road condition measurements

Free webinar about our contact - free road surface conditions sensor NIRS31 - UMB. In addition the presentation of technical specifications, our service expert Manuel Kreissig talks about the installation and maintenance of the sensor.


In the Field

Modernization of ITS on the Querétaro motorway, Mexico

Our Mexican Partner Ingeniería Geofísica y Sistema S.A. de C.V. (IGS) won a project of the Ministry of Transport and Communications (SCT) for the modernization and installation of new Intelligent Transport Systems (ITS) along federal bridges and highways in Querétaro, Mexico.

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RWIS in Geislingen, South Germany helps to make the traffic safer

The South German City Geislingen installed a road weather system in 2016 consisting of Lufft weather sensors and the monitoring software ViewMondo

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Road Weather information Network (ARWIS) with open system architecture – USA / Michigan MDOT

Successful tender bid for the installation of 20 new ARWIS systems (ice warning systems) for Upper Peninsula in Michigan. Lufft was chosen based on the highest scores for technical solution and its strong value proposition.

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Road Weather Products

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  • Instruments - Meteorology
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Lufft Invasive Road Sensors
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Lufft Ultrasonic Wind Sensor
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Lufft NIRS31-UMB Non-Invasive Road Condition Sensor, 15 m Distance
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Lufft WST2 Surface Temperature Sensor
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Lufft Visibility Sensor VS2k
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Lufft Visibility Sensor VS20k
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Lufft WS100 Radar Precipitation Sensor
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Lufft WS300 Smart Weather Sensor
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Lufft WS500 Smart Weather Sensor
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