The Primos Hunting Wind Checker is a perfect mist of unscented powder that allows you to stay downwind. With this Scent Checker, verifying air and wind currents is a sure thing. Simply lift the flap of the Wind Checker and squeeze it to check the air and wind for a minute-by-minute update on the direction of your scent. Whether you're tracking or selecting the best spot to place your stand, the Wind Checker verifies the wind every time.