Test
Measures air velocity in five user-selectable values: meters per second, feet per second, miles per hour, kilometers per hour and knots.
Simple device for elementary children to determine wind speed. It is simple enough for children to understand and use.
Visual outdoor activity for measuring wind speed.
Measures wind speed in a variety of experiments.
Use this sensitive unit to measure low air velocities at low cost.
Clear outer case on allows for unobstructed view
Similar to the one used by the U.S. Weather Bureau.