Accurate Wind Measurement for Demanding Conditions
The Vaisala WINDCAP® Ultrasonic Wind Sensor WMT700 Series measures horizontal wind speed and wind direction using ultrasonic time-of-flight technology.
Three ultrasonic transducers provide multiple measurement paths, allowing WMT700 to deliver reliable wind data from all directions. The measurement automatically compensates for the effects of temperature, humidity and pressure.
Why Choose the Vaisala WMT700?
- No moving parts for low-maintenance operation
- Stainless-steel construction with welded sensor arms
- Wind measurement range available up to 90 m/s
- Very low 0.01 m/s starting threshold
- Wind direction measurement over the full 0–360° range
- Fast 250 ms response time
- Optional heating for transducers, arms and sensor body
- Self-diagnostics and measurement validation
- Suitable for standalone installation or integration into weather monitoring systems
WMT700 Measurement Ranges
| Model | Wind Speed Range |
|---|
| WMT701 |
0 to 40 m/s |
| WMT702 |
0 to 65 m/s |
| WMT703 |
0 to 75 m/s |
| WMT704 |
0 to 90 m/s |
Wind Measurement Performance
| Wind speed starting threshold |
0.01 m/s |
|---|
| Wind speed resolution |
0.01 m/s |
|---|
| Wind speed response time |
250 ms |
|---|
| Wind speed accuracy |
±0.1 m/s or 2% of reading, whichever is greater, from 0–75 m/s |
|---|
| Wind direction range |
0–360° |
|---|
| Wind direction accuracy |
±2° |
|---|
| Wind direction resolution |
0.01° |
|---|
Built for Harsh Outdoor Environments
WMT700 is designed for continuous outdoor wind monitoring where dependable data is required despite changing weather conditions. Its stainless-steel construction is resistant to contamination and corrosion, while the ultrasonic measurement principle eliminates mechanical bearings and other moving components commonly found in conventional anemometers.
Depending on configuration, WMT700 is available with heating for the transducers, sensor arms and body to help reduce the accumulation of snow and ice in cold-weather installations.
Typical Applications
- Meteorological stations – surface wind monitoring and weather observations
- Airports and aviation – wind monitoring for operational and flight safety
- Ports and maritime – wind information for navigation, ports and offshore operations
- Severe weather monitoring – high wind and storm observations
- Wind energy – wind speed and direction monitoring
- Industrial sites – continuous environmental and safety monitoring
- Road and infrastructure monitoring – wind information for exposed routes and structures
Communication and System Integration
WMT700 can be integrated into data acquisition systems, automatic weather stations and other monitoring systems. Depending on configuration, communication options include RS-485, RS-422, RS-232 and SDI-12, with analog outputs also available.
The sensor operates from 9–36 VDC. Separate power requirements apply when sensor heating is selected.
Designed for Professional Wind Measurement
The WMT700 Series is suitable where long-term measurement reliability, high wind capability and minimal mechanical maintenance are important. It is used in professional meteorological and aviation installations around the world and is designed to meet WMO and ICAO wind measurement requirements.
Need Help Selecting the Right WMT700?
The correct WMT700 configuration depends on the required wind speed range, communication interface, installation environment and whether sensor heating is required.
Ask Seacom about WMT701, WMT702, WMT703 or WMT704 selection, mounting, system integration and application requirements.
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WMT700 Catalogue
(133.03k)
