Trusted, Accurate, and Connected Weather Monitoring for Firefighters
Fighting Fires With Knowledge
Wildland Firefighting
Effective wildfire management hinges on precise and timely weather observations. The dynamic nature of wildfires requires ongoing environmental monitoring to anticipate fire behavior, respond effectively, and minimize risk. Kestrel Fire Weather Meters provide essential meteorological data required by Fire Behavior Analysts (FBANs), meteorologists, and frontline firefighting crews. These meters deliver instantaneous readings of wind speed, wind direction, humidity, temperature, pressure, and more, directly impacting safety and strategic decision-making. By rapidly capturing and clearly presenting environmental changes, Kestrel meters enable proactive management, swift decision-making, and enhanced safety for firefighting personnel and affected communities.
The Kestrel Fire Weather Meter PRO line significantly enhances efficiency with built-in NWCG-compliant Probability of Ignition (PIG) and Fine Dead Fuel Moisture (FDFM) tables, eliminating the need for cumbersome manual reference charts and reducing the potential for human error. Unlike traditional belt weather kits, the Kestrel PRO meters continuously log temperature, humidity, and pressure even when powered off, providing firefighters with historical data trends immediately upon startup. Wireless data synchronization to mobile devices via Kestrel LiNK™ further streamlines data analysis and reporting.
Sling Vs Kestrel: Lab Study Finds Kestrel More Accurate
Study Summary: Lab Testing Finds Kestrel Meter RH Measurement To Be More Accurate Than Traditional Sling Psychrometer
These data show it's really hard to get reliable repeatability with the sling. That means you can’t trust the sling for trend data. Our data show that even trained firefighters demonstrate tremendous variability both in technique and ultimately the end result. Even when we standardized the sling protocol, we still saw inaccuracies and inconsistencies as compared to the Kestrel [meters] and a calibrated RAWS.
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Prescribed Burns
Conducting prescribed burns safely requires detailed monitoring of environmental conditions. Accurate, real-time data ensures that controlled burns remain within established parameters, reducing the risk of fires spreading uncontrollably and mitigating environmental damage. A Kestrel Fire Weather Meter instantly measures wind speed, wind gusts, average wind, temperature, and humidity, ensuring conditions remain within the prescribed burn parameters. For more extensive site analysis, the Kestrel DROP D3FW Fire Data Logger continuously monitors temperature and humidity, collecting comprehensive data over days or weeks. This continuous monitoring capability allows teams to identify optimal burn windows and track shifts in environmental conditions, ultimately enhancing operational decision-making and safety.
Placed strategically at planned burn sites, the DROP D3FW logs critical environmental parameters, transmitting stored data wirelessly whenever you approach the site. This capability eliminates repeated visits and manual data collection, significantly enhancing operational efficiency. The robust, weatherproof design of the DROP logger ensures reliable operation even in harsh environmental conditions, making it an indispensable tool for prescribed burn management. With detailed historical data and wireless connectivity, fire managers can plan and execute prescribed burns more precisely and confidently, ensuring better outcomes for ecosystems and surrounding communities.
The Kestrel meter is much quicker to use for gathering immediate weather info then to use the old style sling method during firefighting activity in the Wildland setting. I've had my Kestrel meter for 5 years now and it’s still in good shape despite all the heat and water it's been exposed to on the job.
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Urban Fire Fighting
Accurate, immediate wind speed and weather condition measurements are critical for urban firefighting, particularly when deploying ladders and aerial equipment. Sudden gusts or shifts in wind direction can severely impact the stability and effectiveness of aerial operations, making precise weather data indispensable for tactical planning. A compact Kestrel meter stored in vehicle compartments provides firefighters with crucial wind measurements directly at incident sites, enabling rapid assessment and adjustments. These meters also measure temperature, humidity, and pressure, informing responders about the environmental conditions impacting firefighting strategies.
Furthermore, Kestrel meters play an essential role when urban areas interface with wildland fires. They offer valuable insights into fire behavior and progression, allowing firefighters to anticipate changes and optimize resource allocation. By integrating real-time data into tactical operations, Kestrel ensures optimal safety and efficiency during urban firefighting missions.
The readings are consistent with my check devices. I like the fuel moisture tables. They are easy to use and the tool is durable and weather proof. It fits in just about any size pocket or can be tied to a vest or shoulder harness for convenient access.
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Heat Stress Safety: Training & Operations
Heat-related illnesses pose significant threats to firefighters during training exercises and actual operations, especially under intense physical exertion compounded by protective gear. Firefighters frequently operate in environments where high temperatures, combined with heavy equipment and protective clothing, significantly elevate their core body temperatures. Without appropriate monitoring and prevention strategies, heat stress can quickly escalate into severe conditions such as heat exhaustion or heat stroke. Effective heat acclimatization is essential to build tolerance and resilience to extreme conditions, but it must be carefully managed and closely monitored to avoid dangerous heat-related illnesses and ensure firefighter safety and long-term health.
Kestrel meters equipped with Wet Bulb Globe Temperature (WBGT) functionality provide comprehensive heat stress monitoring by incorporating the effects of humidity, air temperature, and radiant heat. The Kestrel Fire Weather Meter PRO with WBGT delivers real-time WBGT data and pre-programmed ACGIH guidelines, alerting personnel when conditions reach hazardous levels. This advanced monitoring capability is crucial for maintaining firefighter safety, reducing heat-related incidents, and ensuring optimal training and operational readiness.
Sharing better and quicker weather data and interpretation can increase our time to respond — an argument for the value of the Kestrel 5500FW in our arsenal of weather tracking tools that supports a safer fireground.
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Hazardous Materials (HAZMAT) & NBC Response
Rapidly gathering accurate weather data is essential for first responders dealing with hazardous materials (HAZMAT) and Nuclear, Biological, and Chemical (NBC) incidents. During these critical incidents, understanding wind patterns, temperature fluctuations, and humidity levels can dramatically influence the spread and behavior of hazardous materials and contaminants, directly impacting public safety. Immediate and precise weather information enables responders to establish accurate hazard zones and evacuation perimeters quickly, enhancing the effectiveness of containment and mitigation strategies. The Kestrel 5500FW, LiNK wireless communication, and a portable vane mount create an ideal Hazmat weather kit suitable for plume modeling software such as CAMEO/ALOHA and PEAC.
Instant access to critical environmental parameters—wind speed, wind direction, temperature, humidity, barometric pressure, and more—ensures first responders can rapidly assess and manage chemical dispersions and other hazardous scenarios effectively. Equipping every department vehicle with a Kestrel response kit enables immediate measurement and documentation of essential data, enhancing situational awareness and public safety during critical emergencies.
Firefighters have come to depend on Kestrel meters for critical information on current weather conditions. Correct and current knowledge of weather conditions plays a key role in keeping firefighters safe, and properly fighting and extinguishing fires.
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The Kestrel Advantage
Kestrel Instruments sets the industry standard for portable weather monitoring solutions tailored to firefighting and emergency response applications. With robust construction, unparalleled ease of use, wireless data transfer capabilities, and specialized fire behavior and heat stress calculations, Kestrel products empower first responders to make informed, life-saving decisions confidently and quickly.
Trust Kestrel to deliver the data you need exactly when you need it most—because informed decisions save lives.
Compare Products
| Data |  Kestrel DROP D3FW Data Logger |  Kestrel 3500FW Weather Meter |  Kestrel 5500FW Weather Meter |  Kestrel 5400FW Weather Meter |
|---|---|---|---|---|
 Temperature |
✓ | ✓ | ✓ | ✓ |
 Relative Humidity |
✓ | ✓ | ✓ | ✓ |
 Wet Bulb Temp |
✓ | ✓ | ✓ | ✓ |
 Station Pressure (Absolute Pressure) |
✓ | ✓ | ✓ | |
 Heat Stress Index |
✓ | ✓ | ✓ | ✓ |
 Dew Point Temperature |
✓ | ✓ | ✓ | ✓ |
 Wind Speed/Air Speed |
✓ | ✓ | ✓ | |
 Altitude |
✓ | ✓ | ✓ | |
 Barometric Pressure |
✓ | ✓ | ✓ | |
 Wind Chill |
✓ | ✓ | ✓ | |
 Wind Direction |
✓ | ✓ | ||
 Probability of Ignition (PIG) |
✓ | ✓ | ||
 Fine Dead Fuel Moisture (FDFM) |
✓ | ✓ | ||
 Density Altitude |
✓ | ✓ | ||
 Crosswind |
✓ | ✓ | ||
 Headwind / Tailwind |
✓ | ✓ | ||
| Wet Bulb Globe Temp (WBGT) |
✓ | |||
 Globe Temp |
✓ | |||
 Naturally Aspirated Wet Bulb Temp |
✓ | |||
 Thermal Work Limit |
✓ | |||
| Link Wireless Data | ✓ | * | ✓ |
✓ = Standard
* = Optional
Kestrel DROP D3FW
Kestrel 3500FW
Kestrel 5500FW
Kestrel 5400FW