The Extech 45158 measures wind speed in ft/min, MPH, m/s, km/h, Knots, and Beaufort Force and temperature/windchill from 0 to 122°F (-18 50°C). Relative Humidity measures from 10% to 95% and dew point from 32 to 122°F. Plastic wind vane is replaceable. Includes with CR2032 lithium batter and lanyard.
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