Kestrel 3500FW Pocket Fire Weather Meter
Kestrel 3500FW Pocket Fire Weather Meter is backordered and will ship as soon as it is back in stock.
Delivery and Shipping
Delivery and Shipping
- Ships within 24 hours
- Free 3 Day U.S. Shipping
- Global Shipping (UPS, DHL & USPS).
- 45 Day Easy Returns (Free in the USA)
Includes
Includes
Warranty
Warranty
5 year manufacturers warranty.
Sales Tax?
Sales Tax?
We collect state sales tax on orders shipping to Pennsylvania only.
Government Pricing Available
Government Pricing Available
Military, First Responders, Educators and Students receive a discount.
Save up to 10%
Verify your eligibility with ID.me to receive this exclusive discount.
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: |
|
Operational Range: |
|
Resolution: |
|
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: |
|
Operational Range: |
|
Resolution: |
|
Accuracy (+/-): |
|
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: |
|
Operational Range: |
|
Resolution: |
|
Accuracy (+/-): |
|
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 (+/-): |
|
Resolution: |
|
Sensors employed: |
|
Barometric Pressure |
|
Accuracy (+/-): |
|
Resolution: |
|
Sensors employed: |
|
Altitude |
|
Accuracy (+/-): |
|
Resolution: |
|
Sensors employed: |
|
Dew Point |
|
Accuracy (+/-): |
|
Resolution: |
|
Sensors employed: |
|
Wet Bulb Temperature - Psychrometric |
|
Accuracy (+/-): |
|
Resolution: |
|
Sensors employed: |
|
Heat Index |
|
Accuracy (+/-): |
|
Resolution: |
|
Sensors employed: |
|
Downloads:
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.