Accurate wireless weather vane

This wireless weather vane has some unique features- wind direction with a simple, economical, and accurate absolute encoder. Some consumer weather stations Comparison have a limited wind direction resolution of 22.5 degrees, updated every 14 seconds. This weather station’s wind direction has a resolution of one tenth degree, updated once a second. The Bluetooth LE module, a HM-10, allows sleeping between display readings to save power.”

Link