Extech 45158 Mini Thermo-Anemometer

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Fold up protective housing extends to 9″ for better reach
Large dual display of air velocity and temperature
Data Hold to freeze most recent display
Auto shutoff 20 minutes after last key is pressed
Water resistant housing floats and Drop tested to 6 feet Measures ft/min, MPH, m/s, km/h, Knots and Beaufort Force
Selectable averaging function of 5, 10, or 13 second intervals
Replaceable non-corrosive plastic wind vane (impeller)
Measures from 0 to 122°F (-18 to 50°C)
Dual display of air velocity and relative humidity
Measures RH from 10% to 95%
Measure Dew Point from 32°F to 122°F