Ultrasonic Wind Meter Reads Headwind and Tailwind
Use the WindScribe Ultrasonic Wind Meter to read current wind speed, highest positive speed (headwind), lowest negative speed (tailwind), five-second average and running average. Select from mph, kph, fpm, m / s, f / s or knots. Unit is sensitive to breezes as light as 0.4 mph and withstands winds as high as 150 mph. This device will also show you temperature and wind chill in tenths of °F or °C. Includes 3V lithium battery that lasts up to 600 hours.