With this handheld wind meter you can measure wind speed independent from the wind direction.
WP-4 handheld wind meter
Description
With this handheld anemometer you can measure wind speed independent from the wind direction. De reading of wind speed and wind power is from 0..35 m/s, 0..120 km/hr, 0..66 knots and 0..12 Beaufort. The windmill is made from high quality thermoplastic and is easy to replace. With the standard model you have to read the wind speed directly during measuring. To measure first and then read, there’s a model with hold button. There is also a robust, marine model.