The YOUNG Model 81000VRE Ultrasonic Anemometer is a 3-axis, no-moving-parts wind sensor with four synchronized voltage input channels and serial output.

The VRE model has an extended mast that separates the transducer array from the instrument body. Each sensor is individually wind-tunnel calibrated. Wind and sonic temperature is transmitted serially via RS-232 and RS-485. Signals from up to 4 additional voltage devices may also be included in the serial string. The sensor installs on standard 1 inch pipe.

Specifications
Wind Speed: 0 to 40 m/ s ( 0 to 90 mph)
Resolution: 0.01 m/ s
Threshold: 0.01 m/ s
Accuracy: ± 1% ± 0.05m/ s ( 30 m/ s, ± 3% ( 40 m/ s)
Wind Direction: 0 to 360 degrees
Elevation Range: ± 60 degrees
Resolution: 0.1 degree
Accuracy: ± 2 degrees ( 30 m/ s) , ± 5 degrees ( 40 m/ s)
Speed of Sound: 300 to 360 m/ s
Resolution: 0.01 m/ s
Accuracy: ± 0.1% ± 0.05 m/ s ( 30 m/ s)
Sonic Temperature: -50 to + 50 Ú C
Resolution: 0.01 m/ s
Accuracy: ± 2Ú C ( 30 m/ s)
Serial Output: User Programmable ASCII RS-232 or RS-485
1200 to 38400 baud
4 to 32 Hz ( user-selected)
Units: m/ s, cm/ s, mph, knots, km/ h
Voltage Inputs: 4
Range:
0 to 5000 mV, V1 & V2
0 to 1000 mV, V3 & V4
Resolution: 1 part in 4000
Accuracy: ± 0.1% of full scale
Power Requirement: 12 to 24 VDC, 110 mA
Operating Temperature: -50 to + 50 Ú C
Dimensions:
56cm high x 17cm radius ( 3 support arms)
Weight: 1.2 kg ( 2.6 lb)
Shipping Weight: 4.5 kg ( 10 lb)