For years our customers have been asking for wind direction along 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.

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
• 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