This handheld affordable weather meter will not only give you the wind speed, but also temperature and wind chill. Wind speed options include mph, kph, knots, f/m, and beaufort with a range of .5 - 89 mph. Wind speed can be measured by current, maximum or average. The temperature can be read in either Fahrenheit or Centigrade. Current temperature and wind chill reads in tenths with a data lock feature. Temperature range is 5 to 122 Fo. Includes a 400 hour Lithium battery with an auto shutdown mode after 20 minutes for longer battery life.