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Kestrel 4000NV Pocket Weather Tracker - Olive

SKU: NEK-0840NVOLV Rate this product


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  • Kestrel 4000NV accurately measures:
    • Wind Chill
    • Air, Water, and Snow Temperature (displayed in Fahrenheit or Celsius with accuracy of +/-1 degree)
    • Current, Average, and Maximum Wind Speed (displayed in Beaufort Wind Scale; Knots; MPH; KPH; or Feet Per Minute)
    • Barometric Pressure
    • Pressure Trend
    • Altitude
    • Relative Humidity
    • Dewpoint Temperature
    • Wet Bulb Temperature
    • Heat Stress Index
    • Density Altitude
  • Customizable navigation and data displays
  • Tracking and storage of up to 2000 data points (manual and automatic data storage; graphing)
  • Computer interface capability
  • Waterproof and floats
  • Time and date
  • Easy-to-read, backlit display
  • Exterior temperature, humidity, and pressure sensors for fast and accurate readings
  • Humidity sensor can be recalibrated in the field in the field with the Kestrel Relative Humidity Calibration Kit.
  • Minimum, maximum, and average values
  • Automatically store measurements, even when the unit is turned off
  • Manually store measurements with the press of a button
  • Graph and recall trends
  • Customize screens to display user-selected measurements
  • Data charting
  • Data upload (with optional interface)
  • Five languages (English, French, Spanish, German, and Italian)
  • Patented, user-replaceable impeller (no tools needed)
  • Ultralight impeller is mounted in jewel bearings for precision, wide range of speeds and low startup speed
  • Impeller is shock-mounted in a glass-reinforced plastic housing
  • Flip-top impeller cover allows use of other functions while protecting the impeller


  • US Patent Nos. 5,783,753 and 5,939,645 and 6,257,074
  • All instruments and accessories are completely assembled in the USA
  • Actual size: 5.2 in. x 3 in. x 2 in.
  • Weight: 6.4 oz.
  • Power: 2 AAA batteries (average life of 400 hours)


  • Kestrel 4000NV Pocket Weather Tracker
  • Soft carry pouch
  • Wrist/Neck anyard
  • Batteries - 2 AAA
  • Kestrel Certificate of Conformity

The baseline wind and weather meter in the Kestrel 4000 series, the Kestrel 4000NV Pocket Weather Tracker has all the wind and weather monitoring functions available with the Kestrel 3500 Wind Meter, plus the distinct advantage of data storage, graphing functions, and computer interface technology. With these additional options you will be able to record changes in the weather over time, view these changes as graphs on your Kestrel 4000NV's display, and even upload the data to your PC or Mac with the Kestrel Interface. The Kestrel 4000 NV measures every environmental condition simply with the press of a button!

This Olive Drab 4000NV model is particularly handy for military applications thanks to its night-vision preserving backlight. The night-vision backlight helps users to sustain natural night vision. The NV's backlight incorporates an optical filter to reduce overall brightness and minimize blue and green spectrum light to preserve night vision. Additionally, NV backlights are also much dimmer than a standard backlight, making it more difficult to detect with the naked eye in night operations. This backlight appears soft greyish pink, not red, and is still in the visible spectrum, so is not compatible with night-vision equipment. The US Military relies on the Kestrel NV Weather Meters to remain as tough as their operations.


Additional Information

Brand Kestrel
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