Ultrasonic wind meter uses patented technology to read current wind speed, highest positive speed (headwind), lowest negative speed (tailwind), 5-second average, and running average. Select from mph, km/h, fpm, m/s, f/s, or knots, plus temperature and wind chill in tents of oF or oC. Sensitive to breezes as low as o.4 mph, yet withstands winds as high as 150 mph. Includes replaceable 3-volt lithium battery.
Battery lasts up to 600 hours.
Dimensions: 12.7 X 7.6 X 1.9 cm
Weight: 100grms