YS1121M wind direction sensor uses high-quality polymer carbon fiber as raw material, which has good anti-corrosion and anti-corrosion characteristics, can ensure the long-term use of the instrument without rust, and cooperate with the internal smooth bearing system to ensure the accuracy of information collection. It can measure wind direction at 360 degrees with high precision; it has the characteristics of wide measurement range, good linearity, good protection performance, convenient use, easy installation and long transmission distance. It can be effectively applied to various places that need wind direction testing, especially for greenhouses, forestry, environmental protection, meteorological stations, ships, wharves, breeding and other places.