... easy-to-read LCD display with backlight. Wind speed in Beaufort wind scale bar graph Wind chill ... /manual power off. Temperature display in Celsius Fahrenheit. Wind speed range: 0-30m/s Wind temperature range: -10 ... 45 degrees C(14-113F) Current/max/average wind speed reading. Wind speed unit: m/s, Km/h, ft/min, ... best quality,cheapest price, light weight,small moderate DT-82 Wind Speed Measurement