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Enabling better global research outcomes in soil, plant & environmental monitoring.

50.5 Sonic Wind Sensor

The 50.5 Sonic Wind Sensor is the latest field-proven sensor originating from the development work started with NOAA on sonic wind sensors over 25 years ago. This sensor design contains the same wind distortion algorithm and factoring that has been proven and accepted in applications around the world.

No other sensor technology has the history of time proven field performance comparable to the 50.5 Sonic Wind Sensor.


  • No moving parts
  • Digital and analog outputs
  • 16-point wind tunnel calibration with each sensor
  • Optional heating unit allows continuous operation in ice and snow
  • Low maintenance
Wind Speed
Range: 0-50 m/sec standard
Accuracy: ±0.2 m/sec < 11.3 m/sec or ±2 % > 11.3 m/sec
Resolution: 0.1 m/sec
Wind Direction
Range: 0° – 360°
Accuracy: ±3°
Sampling Rate: 5 per second
Data Output Rate: 1 per second
Sonic Frequency: 200kHz
Output Signal
Wind Speed Voltage: 0 to 1, 2.5, or 5 VDC (specified at time of purchase)
Wind Direction Voltage: 0 to 1, 2.5, or 5 VDC (specified at time of purchase)
RS-232: 1200 to 19.2K Baud (9600 Baud standard)
Optional Digital Outputs: SDI-12, RS-422, RS-485 (specified at time of purchase)
Power Requirements
Sensor: 9-18 VDC
10mA at 12VDC average
750mA pulse for 2ms peak (once/sec)
External Heater: 15 Volts DC @ 50 watts
Operating Temperature: -40°C to 55°C no ice
Extended Temperature Range: -50°C to +55°C with external heater
Physical Characteristics
Weight: 2.5kg
Finish: i~6~ aluminium and stainless steel
Ingress Protection: IP65
Cable & Mounting
PN 9574 Cable Assembly; specify length in feet or meters
Mounting: PN 3188 Mounting and Orientation Fixture
PN 50.5H Wind Sensor with External Heater and Control Box
PN 50.5PS External Heater Power Source (100 to 240 VAC 50/60 Hz) – 15VDC @ 4 amps

Heater option must be specified at time of purchase.