Meteorology (AWS)
ND-WRM-002 Road Surface Temperature & Status Sensor
What is the ND-WRM-002? The ND-WRM-002 is a 3-in-1 winter road maintenance sensor combining infrared road-surface temperature, air temperature and air humidity in one rugged unit. With ±1.5 % IR pyrometer accuracy and 15:1 optical resolution, it gives road operators a complete picture of icing risk — ideal for outdoor remote monitoring, winter road maintenance, frost alarming, ice alert and smart agriculture deployments connected to the yDoc ML-525 datalogger.
The ND-WRM-002 is a 3-in-1 winter road maintenance sensor combining infrared road-surface temperature, air temperature and air humidity in one rugged unit. With ±1.5 % IR pyrometer accuracy and 15:1 optical resolution, it gives road operators a complete picture of icing risk — ideal for outdoor remote monitoring, winter road maintenance, frost alarming, ice alert and smart agriculture deployments connected to the yDoc ML-525 datalogger.
Key parameters
What the ND-WRM-002 measures
Surface temp (IR)
–40 to +1030 °C target, ±1.5 % accuracy, 15:1 optical
Air temperature
–40 to +125 °C, ±0.1 °C in working range
Air humidity
0–100 % RH, ±1.5 % typical accuracy
Direct integration
Connects to yDoc ML-525 over RS-485 / Modbus
Specifications
Technical specifications
Applications
Where the ND-WRM-002 is used
Outdoor remote monitoring
Long-term unattended road condition monitoring at remote sites without mains power.
Winter road maintenance
Decision support for snow ploughing, salting and traffic safety operations.
Frost & ice alert
Trigger warnings the moment surface conditions point to imminent freezing.
Smart agriculture
Frost alarming for orchards, vineyards and high-value crops.
Integration
Powered by the yDoc ML-525 datalogger
The ND-WRM-002 connects directly to the yDoc ML-525 datalogger. The yDoc powers the sensor, schedules measurements, stores readings locally and transmits them to the Sensor-Online platform via 4G/LTE-M, NB-IoT, LoRaWAN, satellite or Ethernet — with up to 10 years of battery life.
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FAQ
Frequently asked questions about the ND-WRM-002
What does the ND-WRM-002 measure?+
How does it classify road status?+
How does it integrate with the yDoc?+
Ready to deploy the ND-WRM-002?
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