-5% Boat anemometer Weather Flow Anemometer and weather station for smartphones - Weather Flow €55.61 €58.54 These small but precise instruments allow you to transform your device into a detector of useful information for everyday navigation. Maximum error ± 0.5% or 0.1 m/s. Range from 0.1 to 56 m/s. Scale m/s, Beaufort, knots, mph. Stores wind speed (average and max) and direction. Shockproof rubber coating. Add to cart