TDV has been thoroughly designed to ensure high standards of performance in wind direction monitoring. The sensing element consists of a balanced vane connected to a magnet, whose position is detected by a Hall effect sensor. The whole system allows to investigate with very reliable precision the orientation of the wind by detecting the movement of the wind vane from its original position. Wind vane and the lightness of its material have been accurately chosen in order to obtain a very low mechanical inertia and consequently achieve a high sensitivity. The robust structure of the sensor gives an adequate resistance even at high wind speeds. Furthermore, its simple and compact design facilitates the installation and makes easier the on-site maintenance activities. The sensor is supplied with power and signal cable (12m), and it is available upon request on heated version, powered at 24V (alternating or direct current).