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"Kestrel NV: As rugged as the Environment. As Stealthy as the Mission."
Due to overwhelming demand from NK's military customer, the Kestrel NV line was born in 2005. Military personnel and pilots flying in darkness are often concerned with preserving their night vision and secure position. The NV model has the same features as its more colorful counterparts, but is olive drab or desert tan (4000 and 4500 models only) with a reduced brightness backlight which helps protect the users' adapted night vision. 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. The dim backlight is also much more difficult to detect with the naked eye in night or covert operations.
Kestrel 4000NV Measures:
- Heading (true & magnetic)
- Wind direction
- Crosswind
- Headwind/tailwind
- Altitude
- Pressure trend
- Barometric pressure
- Relative humidity
- Heat stress index
- Dewpoint
- Wet bulb temperature
- Density altitude
- Wind chill
- Air, water, & snow temperature
- Current, average, and maximum wind gust
- Customizable 1400 Data Point Storage
- Data upload (with optional interface)
Features and Accuracy:
- Wind speed units: m/s, km/h, mph, fpm, kts, Beaufort
- Wind speed accuracy: +/- 3% of reading
- Wind speed range: 0.8 to 135 mph, 0.4 to 60.0 m/s
- Temperature units: Fahrenheit or Celsius degrees
- Temperature accuracy: +/- 1.0 degrees Celsius, +/- 1.8 degrees Fahrenheit
- Temperature range: -45.0 to 125.0 degrees Celsius, -50.0 to 260.0 degrees Fahrenheit
- Reletive humidity units: %
- Reletive humidity accuracy: +/- 3% rh
- Reletive humidity range: 0.0 to 100% rh
- Barometric pressure units: hPa, inHg
- Barometric pressure accuracy: +/- 1.5 hPa, +/- 0.05 inHg
- Barometric pressure range: 10.0 to 1100.0 hPa, 0.3 to 32.5 inHg
- Altitude units: m, ft
- Altitude accuracy: +/- 15 m / 50 ft
- Altitude range: -2000 to 9000 m, -6000 to 30,000 ft
- Waterproof and floats
- Time and date
- Easy-to-read, Red backlit display
- Exterior temperature, humidity, and pressure sensors for fast and accurate readings
- Minimum, maximum, and average values
- Automatically store measurements, even when the unit is turned off
- Manually store measurements with the press of a button
- Customizable data storage - 2000 data points
- 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)
- Impeller is shock-mounted in a glass-reinforced plastic housing
- 5 year manufacturer’s warranty
Includes:
- Soft carry pouch
- Wrist and neck lanyards
- Five Year Warranty
- 2 AAA batteries with average life of 400 hours
- Kestrel Certificate of Conformity
- Made in The USA
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