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  Kestrel 4500 Pocket Weather Tracker

Kestrel 4500 Pocket Air Flow Tracker
 
Manuf List $409.00
Sale Price: $314.00
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Availability: Usually Ships in 24 Hours
Product Code: KE4500

Description Technical Specs
 

For years our customers have been asking for wind directionalong with wind speed. New for 2007, the Kestrel 4500 does just that with its built in digital compass. But it doesnt stop there. It also calculates crosswind and headwind/tailwind with reference to a user-set target heading, and stores the information along with all the other environmental readings in its 1400 data point memory.

Pair the 4500 Wind Meter with the Kestrel Vane Mountand you have a data-logging weather station that sets up in seconds and rotates in the slightest of breezes. Did we mention that the whole kit is the ultimate in portability? It packs down into a 2 x 6 inch pouch and weighs under 8 ounces.

Available in the NV Configuration

Military personnel and pilots flying in darkness are often concerned with preserving their night vision. Due to overwhelming demand from our military customers, the Kestrel NV line was added in 2005.

The Kestrel 4500NVhas 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.

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.

Features

Kestrel 4500 Measures

  • Heading (true & magnetic)
  • Wind direction
  • Crosswind
  • Headwind/tailwind
  • Altitude
  • Pressure trend
  • Barometric pressure
  • Wet bulb temperature
  • Relative humidityin %
  • Heat stress index
  • Dewpoint
  • Wet bulb temperature
  • Density altitude
  • Wind chill
  • Air, water, and snowtemperatureF or C
  • Current, average, and maximum air velocity

Kestrel 4500 Additional 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 accurate 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)
  • US Patent Nos. 5,783,753 and 5,939,645 and 6,257,074
  • 5-year warranty
  • Assembled in the USA

Kestrel 4500 Includes

  • Soft carry pouch
  • Neck lanyard
  • Batteries - 2 AAA
  • Kestrel Certificate of Conformity

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