Extech 45170 4-in-1 Environmental Meter: Digital Anemometer, Hygrometer, Light Meter, and Thermometer - Pocket Sized Air Velocity, Humidity, and Lux Tester for HVAC, Greenhouses, and Home Inspection
Special Features
Measures air Velocity, air flow, temperature (air/type K), humidity, wet bulb, Dew point, heat index, wind chill, and light
Replaceable low friction ball bearing Mini vane wheel to retain high accuracy
Measure light levels in foot-candle (FC) or Lux units using a precision Photo diode with cosine and Color correction filter
Backlit display to view in dimly lit areas
Data hold and min/max functions
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