StormLink Mobile Processing Unit – Model 5437-00

The Model 5437 Mobile Processing Unit (MPU) provides real-time road weather data where and when you need it.


  • Turn-key solution with integrated cellular modem and GPS for accessing all of your road weather data
  • Compact design with standard automotive connectors simplifies installation
  • Manage fleet and view data with Contrail® for Road Weather environmental monitoring software


The Model 5437 StormLink® Mobile Processing Unit (MPU) provides a gateway for location based, real-time mobile road weather data. The StormLink MPU collects data from the Mobile IceSight™ or Mobile Surface Sentinel™ road weather sensors providing location-based data to Contrail® for Road Weather environmental monitoring software via integrated cellular modem and GPS. Event-based vehicle information such as plow up/down and spreader on/off can also be collected.

Smart data push rules are used to send data to Contrail software for processing, when you need it, limiting cellular data usage. Store and forward technology is used when the vehicle is not in cellular communication range ensuring data are not lost.

When coupled with Contrail, real-time data is displayed on an intuitive maps interface ideal for fleet management. Each vehicle is displayed on the map with color coded trails based on the sensor data.

Contrail Connect for mobile road weather tracking and management

Contrail cloud-based software for mobile road weather tracking and management. Ask us about our sensors, processing unit and software bundled packages.


  • Return On Investment. Reduce winter maintenance labor and material by knowing when and where road treatment is needed
  • Road weather and vehicle data. The StormLink MPU is compatible with HSE’s line of mobile road weather sensors. Digital inputs can be used to get information about plow up or down or spreader status
  • Expand Road Weather System. Economically fill in the gaps between existing Road Weather Information Systems (RWIS)
  • Route Optimization. Know the weather where your assets are in real-time to deploy resources as needed or route fleet around inclement weather
  • Easily maintained. The StormLink MPU checks for updates automatically, ensuring that your device is always up to date



StormLink and Contrail are registered trademarks of OneRain Incorporated and used with permission.





Inputs 1 RS-485 half duplex
1 RS-232
CAN bus (future use)
3 Digital Input
Outputs 3 Digital Output
CPU ARM Cortex-A5 running at 500 MHz
Communication Cellular modem
Memory 128 MB DDR2 SDRAM, 64 Mb Serial Quad IO Flash Storage
Clock GPS
Power Source 9 to 32 VDC
Power Consumption <4 Watts
Operating Temperature -40° to 158° F (-40° to 70° C)
Dimensions 5.3 x 4.6 x 1.3 in (31.8 x 12.7 x 8.9 cm) LxWxH no connector
Weight 0.57 lbs (0.26 kg)
Shipping Weight 3 lbs (1.4 kg)


Ordering Guide

Model 5437-00 StormLink® MPU; Verizon cellular modem
Model 7140-04 Antenna; cellular LTE, GPS, SMA connectors, adhesive mount
Model 8310-21 Cellular Service M2M; Verizon 25 MB per month plan
Model 8310-22 Cellular Service M2M; Verizon 50 MB per month plan





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