SDI-UWS-GILL Gill Ultrasonic Wind Sensor
The ultrasonic wind speed and wind direction sensor is a four element device containing no moving parts. This results in a robust sensor that requires no field calibration. 
SDI-UWS-Gill Specifications
Interface: SDI-12, RS-232
Voltage: 12VDC nominal
Current: 30mA nominal
Wind Speed
Range: 0 60m/s
Accuracy: +/- 2%
Resolution: 0.01 m/s
Wind Direction
Range: 0 359 degrees
Accuracy: +/- 3 degrees
Resolution: 1 degree
Operating Conditions
Operating Temperature: -35 C to +70 C
Storage Temperature: -40 C to +90 C
Operating Humidity: < 5% to 100%