The RM Young 81000 Ultrasonic 3D Anemometer is a 3D wind sensor with no moving parts. While other 2-D anemometers ignore the vertical wind component, the 81000 provides a complete picture of the wind. Constructed with three opposing pairs of ultrasonic transducers, it provides accurate and reliable wind measurements.

The sensor features robust construction with 3 opposing pairs of ultrasonic transducers supported by stainless steel members. This arrangement provides rigidity to the anemometer while offering a measure of protection to the transducers. The transducers are arranged so that measurements are made through a common volume, thereby improving the validity of the measurement. A fast, 160 Hz sampling rate ensures superior measurement resolution.

The RM Young 81000 Ultrasonic 3D Anemometer features (4) voltage output channels. Serial RS-232 and RS-485 outputs are available as well. For applications requiring synchronized analog measurements, Model 81000V includes four voltage input channels instead of voltage outputs. Wind, sonic temperature, and voltage input data are transmitted serially. For each model, a variety of preset or custom output format options may be selected by the user. The 81000 installs on standard 1" (IPS) pipe. Wiring connections are housed in a convenient weatherproof junction box.