The WeatherFlow WEATHER Meter is the first of its kind by a US-based manufacturer, having been engineered here then calibrated at the University of Florida's Aerospace Engineering Department as an amazingly-priced followup to their very popular WIND meter for phones and other smart devices. You know WeatherFlow from their Wind Meters already, but also iKitesurf.com, iWindsurf.com, Wind Alert, SailFlow, FishWeather. Needless to say, they've been around, they know windmeters, and this revolutionary product with Bluetooth Smart technology is no exception to their goal to view and share live-action weather around the world with a great product at an affordable price.