 |  Kestrel 4500NV Wind & Weather Meter - Inset 1 |
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 Kestrel 4500NV Wind & Weather Meter
Due to overwhelming demand from our military customers. These models have the same features as their more colorful counterparts, but are olive drab with a visible red backlight, which helps sustain the user's natural night vision. Military personnel and pilots flying in darkness are often concerned with preserving their 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. Light in the red spectrum does not cause this “bleaching out”, preventing night blindness and night vision fatigue. The units' red backlight is also much dimmer than a standard backlight, making it more difficult to detect with the naked eye in night operations.
Features:
- Barometric Pressure & Trend
- Altitude & Density Altitude
- Relative Humidity & Dew Point
- Wind Chill & Heat Stress Index
- Wet Bulb Temperature
- Air, Water, & Snow Temperature
- Current & Average Wind Speed
- Maximum Wind Gust
- One-button clear and restart of Max Wind Gust and Average Wind
measurement
- Digital compass provides direction and stores data
with wind speed
- Automatic Crosswind calculator
- Headwind/Tailwind speeds
- Waterproof & Floats
- Manual data capture
- Automatic Data Storage
- Customizable Data Storage - chart up to 2,000
measurements
- Auto data storage interval settable from 2 seconds to 12 hours
- Minimum, maximum, average and logged history stored and
displayed for every measured value
- Automatically store measurements, even when the
unit is turned off
- Manually store measurements with the press of a
button
- Data Upload with optional PC interface and provided software
- Optional RS-232 connection with USB adapter available
- Choice of aviation green or visible red (4500NV only)
electroluminescent backlight with automatic or manual activation
- Real-time hours:minutes:seconds clock, calendar, automatic
leap-year adjustment
- User-selectable auto shutdown: 15 or 60 minutes with no
keypresses or disabled
- Five Languages: English, French, Spanish, German, and Italian
- User-replaceable Impeller
- Flip-top Impeller Cover
- Soft Carry Case
- Wrist and Neck Lanyards
- Five-year warranty from the manufacturer
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