The NIRS31 is a non-invasive road weather sensor with optical principle. It is mounted several meters above the surface at bridges or masts.

The sensor measures surface conditions such as wetness, ice, snow, or frost as well as water film heights, ice percentage in water and freeze point temperature. Through these measurements it generates the friction coefficient on the road or runway.

FEATURES

• NON-INVASIVE
• EASY TO INSTALL AND ADD TO EXISTING NETWORK
• FRICTION MEASUREMENT
• REAL-TIME DATA
• ONSITE CALIBRATION
• MEASUREMENT OF SURFACE CONDITIONS SUCH AS WETNESS, ICE, SNOW OR FROST
• MEASUREMENT OF WATER FILM HEIGHT
• MEASUREMENT OF ICE PERCENTAGE IN WATER AND DETERMINATION OF FREEZE TEMPERATURE
• FULLY INTEGRATED SURFACE TEMPERATURE MEASUREMENT (PYROMETER) AN OPTION