The small wind direction monitoring unit launched by Weichuan Technology has a compact appearance and is easy to use. The sensor adopts a wind vane structure to effectively obtain external environmental information. The housing of the wind direction sensor is made of high-quality carbon material, and is matched with an internal bearing system to ensure the accuracy of information collection. The wireless part adopts LoRa technology, which has the characteristics of long distance and low power consumption. It adopts the LoRaWAN standard protocol and can be integrated with third-party platforms. This product is widely used for wind direction measurement in environments such as greenhouses, environmental protection, meteorological stations, ship docks, and aquaculture.