New for 2007, the Kestrel 4500 provides wind direction with its wind speed measurement thanks to its built in digital compass. But it doesn’t 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.
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The Kestrel 4500 provides comprehensive environmental data in the palm of your hand, in a tough, waterproof package.
Kestrel 4500 Measures...
Heading (true & magnetic)
Wind direction
Crosswind
Headwind/tailwind
Altitude
Pressure trend
Barometric pressure
Wet bulb temperature
Relative humidity in %
Heat stress index
Dewpoint
Wet bulb temperature
Density altitude
Wind chill
Air, water, and snow temperature °F or °C
Current, average, and maximum air velocity
Kestrel 4500 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
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
The Kestrel 4500 Includes...
Soft carry pouch
Neck lanyard
Batteries - 2 AAA
Kestrel Certificate of Conformity
Kestrel Reliability and Quality is Now Backed by a 5-Year Warranty!
2500NV - Night Vision Configuration
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.
Military personnel, SAR, and pilots flying in darkness are often concerned with preserving their night vision. So Kestrel created the 'NV' line to address thsi issue.