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Details about  Olive Drab Kestrel 4000NV - Night Vision Backlight New

Olive Drab Kestrel 4000NV - Night Vision Backlight New
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911NC Weather Store

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Troutman, North Carolina, United States
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Last updated on  May 22, 2014 08:03:35 PDT  View all revisions

Item specifics

New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ... Read moreabout the condition



Altimeter, Barometer, Hygrometer/Humidity, Temperature, Wind Speed




Portable Weather Station



Country of Manufacture:

United States



911NC Weather Store

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Kestrel 4000NV (Night Vision) Olive Drab
Pocket Weather Meter

I have all units in stock that are shown on Ebay and do not drop ship as other Ebay vendors. If you need more than one unit, email me as I have them in stock.
I am am storm chaser, fire/rescue member, 911 dispatcher and only full line Kestrel distributor on Ebay.  This is a valuable tool that I use, but have found it to be used by many other people in work and recreation purposes.  Some other users are in night fishing, military enthusists, competition shooting, kite flying, pilots, remote control pilots, para-sailors, sailors, sky divers, boaters, fishermen, photographers, weather enthusiasts, wind surfers, fire rescue,  ballooning, hikers, campers, hunters, shooting, and police departments.
These units are made by Nielsen-Kellerman, a well established company that has different units for different people.  .  I am a authorized dealer for them, and believe in customer satisfaction.  I sell different models and if you would like more or less features please check my other auctions at my other auctions

The Kestrel 4000 Features:

The Kestrel 4000 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.

"Night-vision preserving backlight. Backlight incorporates optical filter to reduce overall brightness and minimize blue and green spectrum light to preserve night vision.  (Note:  This backlight appears soft greyish pink, not "red", and is still in the visible spectrum, so is not compatible with night-vision equipment.)"

 The chart mode allows users to recall and graph up to 250 measurements, along with the date and time of storage.

Barometric Pressure
Density Altitude 
Wind Speed 
Wind Chill 
Dew Point 
Wet Bulb
Heat Index

All in one pocket sized instrument.

Does not show red background in picture.

The specifics are:

Wind Speed

Accuracy ±3%
Response Time 1 second
Calibration Drift <2% after 100 hours use at 7m/s
Units Display Res'n Range
Knots KTS 0.1 0.6 to 78
Meters per Second M/S 0.1 0.3 to 40
Kilometers per Hour KM/H 0.1 1.0 to 144
Miles per Hour MPH 0.1 0.7 to 89
Feet per Minute FPM 1 59 to 7877
Beaufort Force BEAU 1 1 to 16


Temperature ±1°C
Wind Chill ±1°C
Dew Point ±2°C
Heat Index ±3°C
Response Time approximately 1 minute for most conditions
Units Display Res'n Range
Celsius °C 0.1 -29 to 70
Fahrenheit °F 0.1 -20 to 158

Relative Humidity

Accuracy ±3%
Response Time approximately 1 minute for most conditions
Calibration Drift ±2% over 24 months (can be field calibrated)
Units Display Res'n Range
Percent % 0.1 5 to 95%

Barometric Pressure

Accuracy ±3hPa (between -10°C and 60°C)
Calibration Drift ±1hPa over 12 months (can be field calibrated)
Units Display Res'n Range
hectoPascal (mb) hPa 0.1 870.0 to 1080.0
Inches Mercury inHg 0.01 25.70 to 31.90

Altitude, Density Altitude

Units Display Res'n Range
Meters M 1 -500 to 9000
Feet FT 3 -1600 to 30000

Please go to barometer and altitude help for more information.


Update 1 second
Temperature Range Normal operation from -20°C to 60°C [-4°F to 140°F]. Below
-20°C [-4°F], accurate readings may be taken by keeping the unit warmer than -20°C [-4°F] and exposing it for the minimum time necessary to take a reading (less than 1 minute).
Storage Temperature -30°C to 60°C [-22°F to 140°F].
Auto Shutdown After 15 minutes of no button presses. (This feature can be disabled.)


Battery Two AAA alkaline batteries (included). Typical life, 400 hours.
Impeller 25 mm. [1in.] diameter, sapphire bearings, light weight. User-replaceable impeller/housing assembly.
Temperature Sensor Hermetically sealed precision thermistor.
Humidity Sensor Solid state silicon capacitive sensor.
Pressure Sensor Monolithic silicon piezoresistive sensor.
Dimensions 12.7 x 4.5 x 2.8 cm. [5 x 1.8 x 1.1 in.]
Weight 102 g. [3.6 oz.]
Warranty Standard 5-year covers parts and labor.
*Specifications are are subject to change. 

This unit features:

# Graph and recall trends
# Easy to read, backlit display
# 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 250 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 lanyards, protective pouch and 2 AAA batteries
# Waterproof and floats.
# 5-year warranty
# Assembled in the USA
# US Patent Nos. 5,783,753 and 5,939,645 and 6,257,074

Shipping & Handling:

I prefer PayPal.  I ship all units by USPS Priority mail.  I only accept US Funds.  NC residents 7.75% State Sales Tax.  On all sales outside the US, the buyer is responsible for import fees or taxes (VAT).

Buyers in Italy, Greece and Malta, customs have been holding up shipments and delivery is taking between 30-45 days for orders to arrive.


Accessories - Check out my other auctions for these accessories for your meter and save on shipping on combined orders..


Replacement Impeller                              Tripod                                       Silva 340 Compass                Silva Polaris Compass

Kestrel Cases                                    Kestrel Interface                                Field Calibration Kit                Weather Vane


On Jul-16-09 at 15:47:19 PDT, seller added the following information:


Questions and answers about this item

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Seller assumes all responsibility for this listing.

Shipping and handling

Item location: Troutman, North Carolina, United States
Shipping to: Worldwide
Estimated sales tax
Seller charges sales tax for items shipped to: NC(6.75%).

Return policy

To qualify for a hassle-free return, you must pay with PayPal and have the item shipped to a US address. The item must be returned in the same condition it was received. See terms and conditions - opens in a new window or tab.
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Refund will be given as
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14 days
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Payment details

Payment method Preferred / Accepted  
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Seller's payment instructions

I accept PayPal. I will ship ASAP after I receive the funds.ALL PAYMENTS MUST BE IN US DOLLAR. Shipping discount on more than one unit ordered. NC residents add 7.75% sales tax. INTERNATIONAL BUYERS, PLEASE SEND TELEPHONE NUMBER TO EXPEDITE SHIPMENT.
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