Anemometer, Environmental Sensor Type Rotating Vane, Air Velocity Range 0.6 to 40 mps, 1.2 to 77.8 knots, 1.3 to 89.5 mph, 118 to 7874 fpm, 2.2 to 144 kph, Series 3500, Meter Type Weather Meter, Humidity Range 5 Percent to 95 Percent, Air Velocity...