Wireless pavement Sensor

Measure road surface temperature and detect moisture.

The VX 21 Wireless Pavement Sensor from MH Corbin is a fully sealed and potted device used to measure the true road surface and subgrade temperatures. The sensor can also detect the presence of moisture and road salt on the roadway and is fully compatible with MH Corbin HARWIS Stations. 

The VX 21 Sensor can be used as an add-on sensor in your existing RWIS/HARWIS stations or deployed as an independent system that can be installed almost anywhere. The stand-alone VX 21 Sensor System consists of up to nine VX 21 Sensors, an enclosure, VXMS radio module, cellular modem and a sealed battery. The data is transmitted and viewed using easy-to-use web-based software from any internet-ready device. 

Quick Facts

  • Completely sealed from water intrusion
  • Solid state device
  • Wireless
  • Two different temp readings (surface and subsurface) to greatly enhance pavement forecasting
  • Quick install 

Capabilities

  • Accurately measures road surface temperature, wet/dry, subsurface temperature, anti-icing chemical presence
  • 5 - 7 year battery life
  • Sealed and potted design eliminates water intrusion 
  • Up to 600’ communication distance
  • Can be used as an add-on sensor for RWIS system

Technical Specifications

Technical Data

Dimensions 102 x 73 mm/4 x 2.875 in
Conditions Measured Wet/Dry/Chemical
Interface/Communications 915MHz RF
Power 3.7VDC 38ahr Battery Pack
Operating Temperature Range -40° – 80° C/-40° – 176 F
Operating Humidity Range 0-100% RH

Road Surface Temp

Principle Digital/Microcontroller
Measuring Range -55° – 125° C/-67° – 257° F
Accuracy ±0.5°C/±0.9°F
Resolution 12 bit

Road Surface Temp

Principle Digital/Microcontroller
Measuring Range -55° – 125° C/-67° – 257° F
Accuracy ±0.5°C/±0.9°F
Resolution 12 bit

Get in touch

Technical Support

US Toll-Free: (800) 380 1718
+1 (614) 873 5216

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