For many years, the Hall Wind Meter has been a popular Airspeed Indicator for hang gliders, paragliders, and ultralights. The Hall Airspeed Indicator is mounted in the Bracket with the small tube at the bottom facing directly into the airflow. Airspeed is indicated by the red disc floating on the stainless steel rod. The Hall Airspeed Indicator is an ideal airspeed indicator for kitesurfing. It never needs batteries.