• 5500FW Fire Weather Meter Pro
• 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.

What's new with the Kestrel 5500FW over the StandardKestrel 5500:

• PIG Screen (Probability of Ignition)
• FDFM (Fine Dead Fuel Moisture)

Note the PIG Screen will show FDFM at the bottom.

Advantage over the Kestrel 3000 & Kestrel 3500FW models: You won't need to calibrate this meter! NK/Kestrel stand by this and other 5000 series models to hold calibration within drift for 5 years.

Replacing a Sling Psychrometer with a Kestrel is a huge step in time saving and accuracy. Some have struggled to take this leap and we wrote this quick Kestrel vs. Sling article that may answer questions of accuracy.

Calibration:

• Kestrel will stand by the RH for 5 years, and will adjust it within that 5 years if needed.
• Kestrel will repair, recalibrate or replace any defective product within the warranty period. “Defective” includes measurements outside of our accuracy spec plus stated drift.
• 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!

To achieve stated accuracy, unit must be permitted to equilibrate to external temperature when exposed to large, rapid temperature changes and be kept out of direct sunlight.