• Kestrel 3500FW Pocket Fire Weather Meter - ExtremeMeters.com
  • Kestrel 3500FW Fire Weather Meter for Sale
  • Kestrel 3500FW Pocket Fire Weather Meter - ExtremeMeters.com
  • Kestrel 3500FW Pocket Fire Weather Meter - ExtremeMeters.com
  • Kestrel 3500FW Pocket Fire Weather Meter - ExtremeMeters.com
  • Kestrel 3500FW Pocket Fire Weather Meter - ExtremeMeters.com
  • Kestrel 3500FW Pocket Fire Weather Meter - ExtremeMeters.com
  • Kestrel 3500FW Pocket Fire Weather Meter - ExtremeMeters.com
  • Kestrel 3500FW Pocket Fire Weather Meter - ExtremeMeters.com
  • Kestrel 3500FW Pocket Fire Weather Meter - ExtremeMeters.com

Kestrel 3500FW Pocket Fire Weather Meter

0835FWORA

CHF 163.00
CHF 163.00
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  • Free Shipping in the USA
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  • Ships within 1 business day

Warranty

5 year manufacturers warranty.

Return Policy

45 Day Easy Returns

Product Includes
  • (1) CR2032 Lithium Battery
  • Instructions
  • Lanyard
  • Certificate Of Conformity (Spec Sheet)
  • Protective Cover - Hard Slip-on

Product Measures
  • Wind Speed
  • Current Wind Speed
  • Average Wind Speed
  • Maximum Wind Gust
  • Temperature
  • Barometric Pressure
  • Relative Humidity
  • Pressure Trend
  • Wind Chill
  • Heat Stress Index
  • Dew Point Temperature
  • Altitude (Barometric)
  • Wet Bulb Temperature (Psychrometric)
  • Fully secure shopping experience.
  • Trusted by thousands worldwide
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Description

Kestrel 3500FW Fire Weather Meter – USA-Made, Comprehensive Fire Weather Data Including Wind Speed, Temperature, Humidity, Pressure, and More – Waterproof, Floats, Includes PIG Reference Card, Ideal for Firefighting and Wildfire Management

The Kestrel 3500FW Fire Weather Meter is a professional-grade tool designed specifically for firefighting and wildfire management. Designed and built in the USA, this compact yet powerful weather meter provides critical fire weather data to ensure safe and effective operations in the field. It accurately measures wind speed (including current wind speed, average wind speed, and maximum wind gust), temperature, barometric pressure, relative humidity, pressure trend, wind chill, heat stress index, dew point temperature, altitude (barometric), and wet bulb temperature (psychrometric). With this essential data, the Kestrel 3500FW allows professionals to make informed decisions and stay safe when assessing fire behavior and environmental conditions. The Kestrel 3500FW allows for easy switching between mph, km/h, ft/min, m/s, knots, Beaufort as well as Fahrenheit, Celsius. Pressure readings include inHg, hPA, mb.

Why the Kestrel 3500FW is the Ideal Fire Weather Meter:

For firefighting professionals and wildfire management teams, the Kestrel 3500FW is a critical tool that provides real-time, actionable data for understanding fire weather conditions. With precise measurements of wind speed, temperature, humidity, pressure, wind chill, heat stress, and dew point, along with the included Probability of Ignition (PIG) Reference Card, the Kestrel 3500FW allows you to assess fire danger and optimize response strategies. Its waterproof design and floating capabilities make it durable and reliable in challenging environments, ensuring that you have the right information when you need it most. 

Features

Comprehensive Fire Weather Data: The Kestrel 3500FW provides an extensive set of measurements, including wind speed, current wind speed, average wind speed, maximum wind gust, temperature, barometric pressure, relative humidity, pressure trend, wind chill, heat stress index, dew point temperature, altitude (barometric), and wet bulb temperature (psychrometric), offering all the essential metrics for assessing fire weather conditions.

Waterproof & Floats: Fully waterproof and built to float, the Kestrel 3500FW is designed to withstand rugged outdoor conditions and will stay with you even in wet environments. Whether you're working in rain, high humidity, or near water, this durable weather meter will provide consistent and reliable readings.

PIG (Probability of Ignition) Reference Card Included: The Kestrel 3500FW includes a Waterproof Probability of Ignition (PIG) Reference Card, a valuable tool for understanding fire behavior and predicting the likelihood of ignition based on environmental conditions. This feature is essential for wildfire management and firefighting professionals working to assess fire danger and plan responses.

Designed & Built in the USA: Proudly manufactured in the USA, the Kestrel 3500FW is crafted for precision, durability, and reliability, providing the high-quality performance you expect from a leading weather instrument.

Wind Chill & Heat Stress Index:The meter measures both wind chill and heat stress index, critical for assessing the combined effects of wind and temperature on human safety, particularly for those working in extreme outdoor conditions.

Compact & Easy-to-Use: With its three-button operation, the Kestrel 3500FW is intuitive and easy to use in the field, allowing quick navigation through various functions for real-time decision-making.

5-Year Manufacturer’s Warranty: The Kestrel 3500FW is backed by a 5-year manufacturer’s warranty, offering long-term durability and protection against defects.

Portable & Rugged: This meter is designed to be compact, lightweight, and portable, making it easy to carry in your pocket or gear bag while withstanding tough conditions in the field.

Reliable & Durable: Built to withstand the harshest conditions, the Kestrel 3500FW is engineered to endure the rigors of wildfire response and outdoor environments, delivering consistent, accurate readings when you need them most.

Certificate of Conformity: Each Kestrel 3500 includes a certificate of conformity, confirming that it meets high standards of quality and provides precise, accurate measurements.

Data Hold Mode: The Hold Mode is helpful for capturing measurements when you're unable to view the display in real-time.

High-contrast monochrome LCD display: Easily readable in direct sunlight.

User-Replaceable Impeller: Every Kestrel Impeller is tested at high and low speeds. The impeller is easily replaced if needed.

Slip-On Protective Cover: Keep your Kestrel protected when not in use with a hard cover that simply slides up the lanyard and over the Kestrel.

Sensor Specifications

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

Downloads:

Customer Testimonials

Reviews by our customers

  • Greatest service ever!

    The equipment are in new and good condition. The shipping are really fast after making a payment, they send a package in next day. I am ordering product from Thailand. To be honest after comparing price, Extreme meter LLC is the best price in product and shipping fee.

    Lalitsinee Rtnpb.
    Technician

  • Urgent need for my K2 winter expedition.

    I needed urgent for my K2 winter expedition. I was on the last min and needed the goods to be sent in Iceland. Their chat online worked 100% and I was able to add on one extra peace even after I checkout. They send with UPS same day and I had the package 3 days later here in Iceland. Extreme Meters works and has good service I recommend them.

    John Snorri
    Adventurer

  • Couldn't be more pleased

    I ordered the Kestrel 3550FW meter. Received email notifications reporting the progression of my order up to delivery, which was much quicker than I'd expected. Couldn't be more pleased with the product and service.

    Heidi
    Wildland Firefighter

  • The service was prompt and cordial.

    The service was prompt and cordial. The Kestrel is used to measure wind velocity and temperature when applying pesticides for agriculture crop production. It is also used to measure weather conditions for livestock comfort.

    Arlyn Midtgaard
    Crop Management

  • Extreme Meters answered ALL my questions

    Extreme Meters answered ALL my questions, - were totally professional - were EXTREMELY respectful to me - were a REAL pleasure to chat with ALL BEFORE I PURCHASED THEIR PRODUCTS MOST SINCERE THANK YOU AND APPRECIATED

    Michael Larkins
    Weather Enthusiast

  • My order was in my mailbox before I knew it.

    The website was easy to navigate and placing an order was effortless. Shipping was extremely quick. My order was in my mailbox before I knew it. I started to use the meter immediately; it is excellent for my needs.

    Jane Doe
    Weather Enthusiast