Kestrel 4400BT

• Wet Bulb Globe Temperature (WBGT)
• Thermal Work Limit (TWL)
• Globe Temperature
• Naturally Aspirated Wet Bulb Temperature
• Wind Speed (Current, Average, & Maximum)
• Altitude
• Pressure trend
• Barometric pressure
• Relative humidity in %
• Heat stress index
• Dewpoint
• Wet bulb temperature
• Density altitude
• Wind chill
• Air, water, and snow temperature °F or °C
• Waterproof and floats
• Time and date
• Easy- to-read backlit display
• Data Logger (automatic and manual)
• Customizable data storage 2900 data points
• Humidity sensor can be calibrated in the field with our Relative Humidity Calibration Kit
• Customize screens to display user-selected measurements
• Graph and recall trends
• User-replaceable impeller
• Data charting
• Upload to a computer (with optional interface)
• Meets MIL-STD-810F 516.5 Procedure IV Transit Shock test 20 drops from 5 ft. IP-67 sealed to exclude dust and water at 3 ft. submersion
• Five languages (English, French, Spanish, German, and Italian)
• US Patent Nos. 5,783,753 and 5,939,645 and 6,257,074
• Made in the USA

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Each Units Include

• Batteries 2 AAA
• Kestrel Portable Vane Mount
• Belt carry case
• Neck lanyard
• Kestrel Certificate of Conformity
• A chart with suggested Heat Stress warning zones