Some key features of the HA-80 RG Ex Windsock assembly are;
The windsock gives a reliable wind direction.
Along with the wind direction, you can see a wind speed indication.
It has low maintenance costs.
This windsock assembly has a low power consumption.
a tilt-able mast for easy replacement of the windsock.
a reliable illumination system.
The assembly has no rotating electric parts.
Holland Aviation is not using any mercury-containing slip-rings.
Holland Aviation’s windsocks are designed so that the taper from the throat to the trailing end causes the windsock to fully extend when it is being exposed to a wind of 15 knots (is equal to 28 km/hr or 17 mph).
The HA windsock sleeves have been proven to withstand wind speeds in excess of 145
km/h (75 knots). The windsock fabrics have been tested for mechanical strength, UV
resistance and colorfastness by an independent laboratory.