Extech Mini Thermo Anemometer for Windchill and Humidity (45158)

In stock

Displays air velocity and either temperature, relative humidty, dew point or windchill. With a unique fold up protective housing that floats. Measures up to 62.5 mph and 122 degrees F.

Extech Mini Thermo Anemometer for Windchill and Humidity (45158)


  • Displays air velocity and either relative humidity, dew point, temperature or windchill
  • Selectable averaging function of 5, 10 or 13 second intervals
  • Fold up protective housing extends to 9" (229mm) for extended reach
  • Tripod mound (Optional TR100 tripod - sold separately)
  • Data hold with auto power off
  • Water resistant housing floats
  • Replaceable plastic vane 45116
  • Complete with CR2032 lithium battery and 43" (1.09m) lanyard

This anemometer is great for measuring wind velocity, temperature, relative humidity, dew point and windchill and is great for any small airport, wind farm or farmer. Keep an eye on the wind stresses facing your garden or nursery trees with this versatile meter. Track wind and weather trends and even determine the feasibility of building a wind mill or wind generator. Compact and easy to use with a fold up protective case which floats. Gardens can be destroyed by high winds, so plan on crop placement based on high wind vs low wind areas.


Measurement Range Resolution Basic Accuracy

ft/min (feet per minute)

100 to 5500 ft/min


± (3%rdg + 40ft/min)

m/s (meters per second)

0.5 to 28m/s


± (3%rdg + 0.2m/s)

km/h (kilometers per hour

1.8 to 100.6 km/h


± (3%rdg + 1.4km/h)

MPH (Miles per hour)

1.1 to 62.5 MPH


± (3%rdg + 0.4MPH)

Beaufort Force

1 to 17 BF

1 BF

± 1


0 to 122°F (-18 to 50°C)



Relative Humidity (Model 45158)

10% to 95%


± 4%

Dew Point (Model 45158)

32°F to 122°F

± 2%


CR2032 Lithium battery


5.25 x 2.75 x 0.75" (133 x 70 x 19mm)


1"(24mm) diameter


3oz (95g)

Unit Ship Weight 2 lbs
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