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Vaisala WINDCAP® Ultrasonic Wind Sensor WMT700

WINDCAP® Ultrasonic Wind Sensor WMT700 reliable ultrasonic anemometer for surface wind

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    • WMO and ICAO compliant
    • Measurement range up to 75 m/s
    • Data output rate 0.25 s
    • Heating up to 250 W
    • Body heating option available
    • Self-diagnostics and validation
    • Max. 3600-second average
    • IP66 and IP67
    • Maintenance-free
    • Wind gust calculated according to the WMO guidelines
    • Data format outputs: polar coordinates and vectors
    • Fully compensates effects of temperature, humidity and pressure
    • Three-transducer layout provides accurate data
    Technical Specifications

     Technical Specifications

    Wind Speed

    Measurement range
    ​0...40 m/s
    ​0...65 m/s
    ​0...75 m/s
    ​Accuracy ​+/- 0.1 m/s or 2 % of reading, whichever is greater
    ​Starting threshold ​0.01 m/s
    ​Resolution ​0.01 m/s

    Wind direction

    ​Measurement range 0...360°
    ​Accuracy ​±2°
    ​Starting threshold ​0.1 m/s
    ​Resolution ​0.01°


    Communication interface
    communication (data)
    ​RS485, RS422, RS232, SDI-12
    communication (service)
    analog output wind speed 
    ​voltage, current, frequency
    analog output wind direction
    ​voltage, current, potentiometer
    ​Communication profile
    ​WMT70, ASCII, NMEA, SDI12, ASOS, MES 12, customized
    ​Baud rate ​300, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200
    ​Available averages ​max. 3600 s
    ​Readout up-date interval ​max. 4 Hz
    digital outputs
    ​m/s, knots, mph, km/h
    analog outputs
    ​V, mA
    ​              frequency outputs ​Hz (push-pull, pull-down, pull-up)
    ​Operating mode ​automatic or poll mode
    ​Virtual temperature ​degrees Celcius


    ​Heating ​0 or 30 or 150 or 250 W
    ​-10 ... +60 or -40 ... +60 or -55 ... +70 °C
    ​-60 ... +80 °C
    ​Operating voltage ​9 ...36 VDC
    ​Heating voltage ​24 ...36 VDC
    ​IP class ​IP66 and IP67
    body, arms
    ​stainless steel AISI316
    For complete specifications, please see the datasheet or user guide in "Documents".
    Related Services
    • Warranty 
    • All Vaisala products and services are covered by a 12-month warranty as standard, with selected products covered for up to 24 months. During this period you benefit from free repair or replacement of faulty equipment.
    • Service Center Repair  
    • If your instrument requires repair.