Wilderness Pursuits 301 FloatO are the most accurate long range Wind and Thermal indicators on the market! When it comes to hunting big game, proper scent control and understanding how scent travels though terrain at a distance is crucial to success. FloatO accurately show your invisible downwind scent path, exposing updrafts, downdrafts and thermals that Powder and Smoke based products simply can't reach. Long Range. Reads wind and thermals further than Powder or Smoke Long Lasting Easy Carry. Small and compact, fits in your pocket or pack Feather-light, natural fibers that follow wind currents Effective use from ground level or in a tree stand Works in ALL wind speeds Made in the USA