Kestrel 5500FW Fire Weather Meter Pro, Nielsen Kellerman

Every firefighter knows that wind, temperature and humidity drive fire behavior. Kestrel Weather Meters have been the trusted belt weather kit replacement for over 20 years. The Fire Line includes models with built-in calculation of Probability of Ignition (PIG) and Fine Dead Fuel Moisture (FDFM), features requested by wildland firefighters.

The fast and easy tool for taking weather observations, the Kestrel 5500FW Fire Weather Meter Pro provides NIST-traceable accuracy, reliability and usability when it matters most. Measure every environmental condition plus PIG and FDFM and view trends with on-screen data graphing. Drop-proof, dust-proof, waterproof and able to withstand extreme environments without damage, your Kestrel Fire Weather meter can stand up to the abuses of work on a fire line wherever you’re assigned. A variety of carry pouch options makes it even easier to take your Kestrel Fire Weather meter with you. The Kestrel 5500FW Fire Weather Meter Pro offers a large, high-resolution and contrast display and highly readable numerals. The Kestrel 5500FW also includes a built-in dual color backlight, extra-strong polycarbonate lens and single AA battery operation. In addition to measuring the current environmental conditions, the Kestrel 5500FW tracks and logs over 10,000 sets of time-stamped data, providing a complete history of conditions on the fire from the moment you arrive.

Calibration:

RH (Relative Humidity):  See Chart for more detail.

• Accuracy:  +/- 2%RH
• Sensors:  10 to 90% 25°C non-condensing
• Calibration Drift: Typically less than +/- 0.25% per year!

The Kestrel Meter 5500FW Heat Stress Meter measures/features

• PIG Screen (Probability of Ignition) 
• FDFM Screen (Fine Dead Fuel Moisture)
• Waterless! Natural Wet Bulb Temperature accurately calculated from on-board digital sensors with no tedious setup or maintenance.
• Large, hi-res, hi-contrast, graphic display is perfectly readable in the brightest sunlight and is backlit for use in low-light conditions.
• Globe Temperature
• Naturally Aspirated Wet Bulb Temperature
• Wind Speed (Current, Average, & Maximum)
• Altitude
• Pressure trend
• Barometric pressure
• Relative humidity in %
• Accuracy:  +/- 2%RH
• Sensors:  10 to 90% 25°C non-condensing
• Calibration Drift: Typically less than +/- 0.25% per year!
• Heat stress index
• Dewpoint
• Wet bulb temperature
• Density altitude
• Wind chill
• Air, water, and snow temperature °F or °C
• Waterproof
• 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
• 5 Year Warranty

MPN: 0855FWORA