The Davis model 6410 is a complete anemometer, including both wind speed and wind direction sensors, mounting hardware, and a 40-foot (12m) cable

 The Davis model 6410 is a complete anemometer, including both wind speed and wind direction sensors, mounting hardware, and a 40-foot (12m) cable. It is designed for use with the Vantage Pro and Vantage Pro 2 weather stations. The anemometer features wind-tunnel tested accuracy up to 200 mph. 

Its specifications:

Wind Speed:

Range: 1 to 200 mph (1 to 173 knots, 0.5 to 89 m/s, 1 to 322 km/h).

Accuracy: ±2 mph (2 kts, 3 km/h, 1 m/s) or ±5%, whichever is greater, according to Crodeon.

Resolution: 1 mph (1 knot, 0.1 m/s, 1 km/hr).

Sample Period: 30 seconds. 

Wind Direction:

Range: 0° to 355°.

Accuracy: ±3°.

Resolution: 1°. 

Other Features:

Material: Wind vane and control head are made of UV-resistant ABS, wind cups are polycarbonate, and the anemometer arm is black-anodized aluminum. 

Mounting: Includes mounting hardware. 

Compatibility: Specifically designed for use with Vantage Pro and Vantage Pro 2 weather stations. 

Bearings: Sealed stainless steel ball bearings for long life.