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
| General | |
| 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% |
| Friction | |
| Measuring range | 0 … 1 |
| Resolution | 0.01 |
Documents
Brochure - Lufft - Image brochure (EN) 
Brochure - Lufft - MARWIS (EN)
Brochure - Lufft - Weather Critical Operations (EN)
EU declaration of conformity - Lufft MARWIS and StaRWIS
Firmware - Lufft - MARWIS / StaRWIS
Manual - Lufft - MARWIS / StaRWIS (EN)
Manual - Lufft UMB Protocol (EN)
Quickstart - Lufft - StaRWIS - Road Sensor (DE/EN)
Contact us
If you are thinking of carrying out a project, would like to purchase any instrumentation type or would like more information about DILUS services, please leave your contact information. The team will contact you as soon as possible.StaRWIS-UMB – Stationary Road Weather Information Sensor, leave your details. The team will contact you as soon as possible.