The bottom cable is adopted to completely the aging problem of the aviation plug rubber pad, and it is waterproof after being used for a long time. High-performance bearings, low rotational resistance, accurate measurement, small size and light weight, easy to carry and assemble. The shell is made of high-quality material with high hardness and external electroplating and plastic treatment, which has good anti- and anti-erosion performance. Widely used in the measurement of wind direction in greenhouses, environmental protection, weather stations, ships, wharf, breeding and other environments., Weight: 0.7275254646 pounds, Manufacturer: NONDK