3D Ultrasonic Anemometer

81000RE / 81000VRE - Extended Mast

The YOUNG Models 81000RE/81000VRE Ultrasonic Anemometer are 3-axis, no-moving-parts wind sensors. They are ideal for applications requiring fast response, high resolution and three-dimensional wind measurement.


Voltage and Serial Outputs (recommended cable: 18660)81000RE$3,924.00
Voltage Inputs and Serial Outputs (recommended cable: 18660)81000VRE$3,932.00
22 AWG, Per Ft.18660$2.10

Quantity discounts applied during checkout. Excludes sensor cables.

The YOUNG Model 81000 Ultrasonic Anemometer measures both horizontal and vertical wind speed and direction.  This sensor features durable, corrosion-resistant construction with three opposing pairs of ultrasonic transducers supported by stainless steel members.  An extended mast separates the transducer array from the instrument body to minimize wind disruption.  Each sensor is fully wind tunnel tested and calibrated to provide accurate wind measurement.  The standard sensor features RS-232 and RS-485 serial outputs.  Wind and sonic temperature data are available on four analog voltage outputs.  The sensor mounts on a standard 1-inch IPS pipe.  A mounting orientation ring is included that engages with the base of the sensor to retain orientation when the sensor is removed for maintenance.  Terminations are made in a junction box at the base of the sensor by small clamp-style connectors (no special connectors are required).

The YOUNG Model 81000VRE Ultrasonic Anemometer is similar to Model 81000V (four analog voltage inputs) with an extended mast .

Wind Speed:

Range: 0 to 40 m/s (0 to 90 mph)
Resolution: 0.01 m/s
Threshold: 0.01 m/s
Accuracy: ± 1% ± 0.05 m/s (30 m/s), ± 3% (40 m/s)

Wind Direction:

Azimuth Range: 0 to 360°
Elevation Range: ± 60°
Resolution: 0.1°
Accuracy: ± 2° (30 m/s), ± 5° (40 m/s)

Speed of Sound:

Range: 300 to 360 m/s
Resolution: 0.01 m/s
Accuracy: ± 0.1% ± 0.05 m/s (30 m/s)

Sonic Temperature:

Range: -50 to 50°C
Resolution: 0.01°C
Accuracy: ±2°C (30 m/s)

Voltage Outputs (Model 81000RE):

4 voltage outputs, 0 to 5000 mV

Voltage Inputs (Model 81000VRE):

0 to 5000 mV, V1 & V2
0 to 1000 mV, V3 & V4
Resolution: 1 part in 4000
Accuracy: ± 0.1% of full scale

Serial Outputs:

User Programmable
RS-232 or RS-485
Formats: ASCII, ASCII polled, NMEA
Baud: 1200, 4800, 9600, 19200, 38400
Output rate: 4 to 32 Hz (user-selected)
Units: m/s, cm/s, mph, knots, km/h

Power Requirement:

12 to 24 VDC, 110 mA

Operating Temperature:

-50 to +50°C


Overall height: 70 cm (27.6 in)
Support arm radius: 17 cm (6.7 in)
Mounting: 34 mm (1.34 in) diameter (standard 1 inch pipe)


1.7 kg (3.8 lbs)

Shipping Weight:

5 kg (11 lbs)