The WeatherFlow Wind Meter - it’s an anemometer that fits in your pocket. Download one of our free apps for iOS or Android and plug in your wind meter - it’s really that easy. Hold it up high facing into the wind. Your phone does the rest by recording the wind speed (average, lull and gust), wind direction and location. The Wind Meter is designed to be the best handheld anemometer on the market. It’s operating range extends from the smallest puff to well over hurricane force winds. Calibrated at the University of Florida’s Aerospace Engineering Department, our Wind Meter is designed so that even if you don’t hold it directly into the wind, you’ll still get very accurate wind speed information.