Micro ultrasonic 5-parameter sensor is a fully digital detection, high-precision sensor, which is integrated by ultrasonic principle wind speed and direction sensor, high-precision digital temperature, humidity, and air pressure sensor, which can accurately and quickly detect wind speed, wind direction, atmospheric temperature, atmospheric humidity. and atmospheric pressure, the built-in signal processing unit can output corresponding signals according to user needs, the high-strength structural design can work reliably in harsh weather environments, and can be widely used in meteorology, ocean, environment, airports, ports, laboratories, industry, agriculture and transportation and other fields.