Kestrel 3500FW Pocket Fire Weather Meter

Name: Kestrel 3500FW Pocket Fire Weather Meter
Brand: Kestrel
SKU: 0835FWORA
Price: 199.0 USD
Availability: InStock

Kestrel | SKU: 0835FWORA | Barcode: 730650003068

$199.00 USD ~~$269.00 USD~~

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Includes

(1) CR2032 Lithium Battery
Instructions
Lanyard
Certificate Of Conformity (Spec Sheet)
Protective Cover - Hard Slip-on
Waterproof PIG Reference Card

Warranty

5 year manufacturers warranty.

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Kestrel 3500FW Pocket Fire Weather Meter

Rely on the Kestrel 3500FW Pocket Fire Weather Meter to rapidly and accurately assess meteorological conditions, including wet bulb and barometric readings.

When fighting wildfires, protecting lives, houses, and property while ensuring safety for everyone involved demands accurate fire behavior predictions based upon good weather observations.

Kestrel weather meters have been relied upon by fire fighters for decades to provide fast, accurate measurement of wind speed, temperature and humidity. The Kestrel 3500 (MPN# # 0835FWORA) Fire Weather Meter has been updated specifically for firefighting, adding barometric pressure, altitude and wet bulb readings and an easy-to-read Probability of Ignition (PIG) and Fine Dead Fuel Moisture (FDFM) reference card – everything required for a complete weather observation. This one rugged, handheld instrument easily replaces all of the items included in your Belt Weather Kit, providing consistently accurate measurements without prepping a sling psychrometer or risking the possibility of human error.

IP67 waterproof and Mil-SPEC-810G drop tested, Kestrels are built for the abuse that work on a fire line can dish out. The Kestrel 3500 Fire Weather Meter includes a hard, rubberized slip-on cover that protects the display and impeller, even when tossed in your pack. Kestrel Weather & Environmental Meters are designed & manufactured in the U.S.A and are backed by our 5-year warranty. Each Kestrel 3500 is factory calibrated and comes with a certificate of conformity and may be factory or field recalibrated.

Features:

Simple 3-Button Control
High Contrast, Sunlight Readable Monochrome LCD Display
Backlight (Blue white)
Temperature Sensor (Patented External Isolated)
CR2032 Coin Cell Battery (Average Life 300 Hours)
Data Hold Function
Drop-Tested to MIL-STD-810G
Waterproof to IP67 (3'/1M for 30 minutes)
Kestrel Certificate of Conformity
Neck Lanyard
Patented Impeller and Sensor Technology
Slip-On Protective Cover
Time of Day
User-Replaceable Batteries
User-Replaceable Impeller
Waterproof & Floats
Designed and built in the USA
Waterproof PIG Reference Card

The Kestrel 3500 is available in a these models:

Kestrel 3500 Yellow
Kestrel 3500NV (Olive Drab with Night Vision Preserving Backlight)
Kestrel 3500DT (Yellow with Delta T Calculation)
Kestrel 3500FW (Safety Orange with PIG & FDFM Reference Guide Included) - This model

Also check out the Newly Released Kestrel 3550FW & Kestrel 3550AG models.

Kestrel 3550AG (Safety Green with Bluetooth & Delta T Calculation)
Kestrel 3550FW (Safety Orange with Bluetooth & PIG/FDFM Reference Guide)

Sensor Specifications

Wind Speed
Units of Measure:	mph \| kt \| B \| m/s \| ft/min / km/h
Specification Range:	0.6 to 40.0 m/s 118 to 7,874 ft/min 2.2 to 144.0 km/h 1.3 to 89.5 mph 1.2 to 77.8 knots 0 to 12 B* 2-131.2 F/S*
Operational Range:	0.6 to 60.0 m/s 118 to 11,811 ft/min 2.2 to 216.0 km/h 1.3 to 134.2 mph 1.2 to 116.6 knots 0 to 12 B* 2-196.9 F/S*
Resolution:	0.1 m/s 1 ft/min 0.1 km/h 0.1 mph 0.1 knots 1 B
Accuracy (+/-):	Larger of 3% of reading, least significant digit or 20 ft/min
Notes:	1 inch\|25 mm diameter impeller with precision axle and low-friction Zytel® bearings. Startup speed stated as lower limit, readings may be taken down to 0.4 m/s \| 79 ft/min \| 1.5 km/h \| .9 mph \| .8 kt after impeller startup. Off-axis accuracy -1% @ 5º off-axis; -2% @ 10º; -3% @ 15º. Calibration drift < 1% after 100 hours use at 16 MPH \| 7 m/s. Replacement impeller (PN-0801) field installs without tools (US Patent 5,783,753). Wind speed calibration and testing should be done with triangle on impeller located at the top front face of the Kestrel. *F/S only in Ballistics units. Beaufort not available in Ballistics units.
Ambient Temperature
Units of Measure:	Fahrenheit, Celsius
Specification Range:	-20.0 to 158.0 °F -29.0 to 70.0 °C
Operational Range:	14.0.0 to 131.0 °F -10.0 to 55.0 °C
Resolution:	0.1 °F 0.1 °C
Accuracy (+/-):	0.9 °F 0.5 °C
Notes:	Hermetically sealed, precision thermistor mounted externally and thermally isolated (US Patent 5,939,645) for rapid response. Airflow of 2.2 mph\|1 m/s or greater provides fastest response and reduction of insolation effect. Calibration drift negligible. Thermistor may also be used to measure temperature of water or snow by submerging thermistor portion into material -- remove impeller prior to taking submerged measurements and ensure humidity sensor membrane is free of liquid water prior to taking humidity-based measurements after submersion.
Pressure
Units of Measure:	inHg, hPA, mb
Specification Range:	25°C/ 77°F 750-1100 hPa\|mbar 22.15-32.48 inHg 10.88-15.95 PS
Operational Range:	0.30 to 48.87 inHg 10.0 to 1654.7 hPa\|mbar 0.14 to 24.00 PSI 14.0 to 131.0 °F -10.0 to 55.0 °C
Resolution:	0.1 hPa\|mbar 0.01 inHg 0.01 PSI
Accuracy (+/-):	1.5 hPa\|mbar 0.044 inHg 0.022 PSI
Notes:	Monolithic silicon piezo-resistive pressure sensor with second-order temperature correction. Between 1100–1600 mbar, unit will operate with reduced accuracy. Sensor may not operate above 1600 mbar and can be damaged above 6,000 mbar or below 10 mbar. Calibration drift is negligible for the life of the product.
Relative Humidity
Units of Measure:	%
Specification Range:	5 to 95% 25°C non-condensing
Operational Range:	0 to 100%
Resolution:	0.1 %RH
Accuracy (+/-):	3%RH
Notes:	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. Calibration drift is typically less than ±0.25% per year.

Calculated Measurements

Wind Chill
Accuracy (+/-):	1.6 °F 0.9 °C
Resolution:	0.1 °F 0.1 °C
Sensors employed:	Wind Speed Temperature
Barometric Pressure
Accuracy (+/-):	0.07 inHg 2.4 hPa\|mbar 0.03 PSI
Resolution:	0.01 inHg 0.1 hPa\|mbar 0.01 PSI
Sensors employed:	Pressure User Input (Reference Altitude)
Altitude
Accuracy (+/-):	typical: 23.6 ft/7.2 m from 750 to 1100 mBar max: 48.2 ft/14.7 m from 300 to 750 mBar
Resolution:	1ft 1m
Sensors employed:	Pressure User Input (Reference Pressure)
Dew Point
Accuracy (+/-):	3.4 °F 1.9 °C 15-95% RH. Refer to Range for Temperature Sensor
Resolution:	0.1 °F 0.1 °C
Sensors employed:	Temperature Relative Humidity
Wet Bulb Temperature - Psychrometric
Accuracy (+/-):	3.2 °F 1.8 °C
Resolution:	0.1 °F 0.1 °C
Sensors employed:	Wind Speed Temperature
Heat Index
Accuracy (+/-):	7.1°F 4.0°C
Resolution:	0.1 °F 0.1 °C
Sensors employed:	Temperature Relative Humidity