To use, connect the black wire to power and signal ground, the brown wire to 7-24VDC (we used 9V with success) and measure the analog voltage on the blue wire. The voltage will range from 0.4V (0 m/s wind) up to 2.0V (for 32.4m/s wind speed). That's it! The sensor is rugged, and easy to mount. The cable can easily disconnect with a few twists and has a weatherproof connector.

Dimensions:
- Height (base to center): 105mm / 4.1"
- Center out to Cup: 102mm / 4"
- Arm Length: 70mm / 2.8"
- Weight: 111.8g

Specifications:
- Wire length: 99cm / 39"
- Output: 0.4V to 2V
- Testing Range: 0.5m/s to 50m/s
- Start wind speed: 0.2 m/s
- Resolution: 0.1m/s
- Accuracy: Worst case 1 meter/s
- Max Wind Speed: 70m/s
- Connector details: Pin 1 - Power (brown wire), Pin 2 - Ground (black wire), Pin 3 - Signal (blue wire), Pin 4 not connected

Datasheet (PDF)