The wind direction indicator is designed to indicate the strength and direction of the wind. It consists of a rotating mast, a mechanism including a basket that allows the installation of a sleeve (for airstrips and airfields suitable for nighttime operation), and a low-intensity obstruction lighting lamp mounted on top of the wind vane. The rotary mechanism is made with double-row angular contact bearings, ensuring stable operation and resistance to thrust and radial forces. The windlass basket is made of SS316 acid-resistant steel. The windsock can optionally be equipped with a twilight sensor that activates the wind sleeve lighting and turns on the obstruction lighting fixture. The indicator can be installed on metal and breakable poles. The construction of the mast allows the installation of the device without anchoring to the ground.

The weather vane is made of three ballast blocks and tension ropes. The ball joint ensures the connection of the mast with the ballast arms. Each of the three ballast blocks consists of 4 pieces of concrete blocks weighing 24 kg each. Each of the three ballast blocks consists of 4 pieces of concrete blocks weighing 24 kg each. The use of this load weight allows the weather vane to work at wind speeds up to 140 km/h. Thanks to the use of a joint in the base of the weather vane, it is possible to mount the mast on gable roofs with different inclination angles.