Same as the the Kestrel 4500 but this unit has a night-vision preserving backlight which 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.
Kestrel 4500NV Measures: Heading (true & magnetic), Wind direction, Crosswind, Headwind/tailwind, Altitude, Pressure trend, Barometric pressure, Wet bulb temperature, Relative humidity in %, , Dewpoint, Wet bulb temperature, Density altitude, Wind chill, Air, Water, and Snow temperature °F or °C, Current, Average, and Maximum Air Velocity.
Kestrel 4500NV Features: Waterproof and floats, Time and date, Easy- to-read backlit display, Data Logger (automatic and manual), Customizable data storage - 1400 data points, Minimum, Maximum and Average values, Multi-Function 3-line display, Humidity sensor can be recalibrated in the field with our Relative Humidity Calibration Kit, Exterior temperature, humidity, and pressure sensors for fast and ac curate readings, Customize screens to display user-selected measurements, Graph and recall trends, User-replaceable impeller, Flip-top impeller cover allows use of other functions while protecting the impeller, Data charting, Upload to a computer (with optional interface), Five languages (English, French, Spanish, German, and Italian), 5-year warranty, Assembled in the USA.
Kestrel 4500NV Includes: Soft carry pouch, Neck lanyard, Batteries - 2 AAA, Kestrel Certificate of Conformity.
Shipping Weight: 8 oz. (225g)