The Kestrel 4000 NV is olive drab with a visible red backlight. The Kestrel Tracker is the next generation of weather monitoring. You can now measure EVERY major environmental condition, easily and accurately, right in the palm of your hand. The chart mode allows users to recall and graph up to 480 measurements, along with the date and time of storage. Barometric Pressure, Altitude, Density Altitude, Temperature, Humidity, Wind Speed, Wind Chill, Dew Point, Wet Bulb, and Heat Index... all in one pocket sized instrument.

Graph and recall trends
Easy to read, red backlight display for night vision
Time and date
Customize screens to display user-selected measurements
Flip-top impeller cover allows use of other functions while protecting the impeller (hard cases available.)
Automatically store measurements, even when the unit is turned off
Manually store measurements with the press of a button
Chart up to 480 measurements
Impeller can be replaced without tools
Exterior temperature, humidity, and pressure sensors for fast and accurate readings
Humidity sensor can be recalibrated in the field with a Relative Humidity Calibration Kit

Includes neck and wrist lanyards, protective pouch and 2 AAA batteries. Waterproof and floats. 2-year warranty. Assembled in the USA.