See the wind:
In addition to the visibility in flight, the Wind Tracker has the ability to animate the wind, showing shears and erratic air movement from various directions. This is accomplished by the six directional movement of the patented pivotal harness system.
Wind Tracker Windsock Systems has released the new color compliant dynamic color design that accomplishes the three most desirable traits for any windsock flag. We have enhanced the visibility by using contrasting colors to catch the eye immediately. All of the dynamic striped design colors are OSHA compliant.
Reliable & accurate for Evacuations, Emergency Action Plans (EAP), Commercial Use, Industrial Airport Windsocks, Oil fields, etc.US Patent 5,701,840