Measures Current wind speed, Average wind speed, and Maximum wind gust, Wind chill, Air temperature, Water temperature, and Snow temperature, Barometric pressure, Pressure trend, and Altitude (altimeter), Relative humidity, Heat stress index, Dewpoint, Wet bulb temperature, and Dry bulb temperature (psychrometer), Digital compass provides direction and stores data with wind speed, Automatic Crosswind calculator and Headwind/Tailwind speeds.
Each Kestrel instrument is individually calibrated, tested and certified against standards traceable to the National Institute of Standards and Testing (NIST).Help me choose the right model... Click here for detailed specifications...
The Kestrel 4000NV was improved to make it even more suitable for military use.
The Kestrel 4000 NV is olive drab with a visible red backlight - which helps users to sustain natural night vision. The NV’s red backlight preserves the natural night vision of users such as military personnel and pilots. It takes 30 to 45 minutes for the average eye to adapt to darkness and maximize night vision. Even a short burst of white, yellow, green or blue light “bleaches out” the rod cell photoreceptors in the eye and causes night blindness until the entire adaptation process can take place again. Light in the red spectrum does not cause this “bleaching out”, preventing night blindness and night vision fatigue. This unit’s red backlight is also much dimmer than a standard backlight, making it more difficult to detect with the naked eye in night operations.
We are a full service Factory Authorized Kestrel Instruments dealer. We offer a no questions asked special 90 day money back guarantee for all Kestrel Instruments products. Our competition and the manufacturer only offer 30 days. We are experts and install every weather station we sell. You will find our discounts the lowest in the industry.
Generally leaves the warehouse in 1-3 business days.
|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 2000 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 our Relative Humidity Calibration Kit.|
|Includes neck and wrist lanyard, protective pouch and 2 AAA batteries|
|Waterproof and floats.|
|Standard 5-year warranty covers parts and labor|
|Assembled in the USA|
|US Patent Nos. 5,783,753 and 5,939,645 and 6,257,074|