*This product converts the direction of the wind into the direction of the magnetic field 
through the cooperation of the wind direction arrow and the imported bearing & 
its accessories, and then through the internal non-contact magnetic sensor convert into
electric signal to realize the electric signal detection of the wind direction.
*The wind direction sensor's monoblock was made of black ABS+PC. 
It has many advantages like : heatproof, low temperature resistance.
*It is always used in highway, port, wharf, power plant, cableway, clutivation, 
agriculture, energy saving detection, engineering machine and ect.