Kestrel 3550FW Fire Weather Meter with Bluetooth
Kestrel
Bluetooth connectivity
With its Compass and Bluetooth connectivity, the Kestrel 3550FW Fire Weather Meter will allow you to take your environmental readings on your meter and transfer the readings instantaneously to your mobile device using the free Kestrel app.
Once the data is stored in the Kestrel app, you can share your information using your mobile device. Send via email to a colleague or review stored data in-app. Also included is a spare Kestrel battery!
Fighting wildfires and protecting lives, property and communities demands accurate weather monitoring and the ability to quickly share data to maximize crew safety and deploy resources. The Kestrel 3550FW paired with the free Kestrel app puts powerful tools for monitoring, logging, and sending important weather information for making the most informed decisions for fire management strategy.
Pocket sized, rugged, waterproof, affordable, easy-to-use and equipped with data logging capabilities and wireless data retrieval for monitoring and reporting, the Kestrel 3550FW is your trusted weather guide for fire management and safety.
Comprehensive Monitoring
Consistently accurate measurements of barometric pressure, altitude, dew point, heat stress index, relative humidity, temperature, wind speed and direction, wind chill, temperature and wet bulb readings.
Capture Real-Time Data
Easily view, and record data in real-time on a mobile device with the free Kestrel app.
Send Detailed Reports
Export and send detailed weather reports with GPS location via text or email for vital fire weather data management.
Reference Cards
Includes an easy-to-read Probability of Ignition (PIG) and Fine Dead Fuel Moisture (FDFM) reference card.
Measures
- Current Wind Speed
- Maximum Wind Gust
- Average Wind Speed
- Wind Direction
- Temperature
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Altitude (Barometric)
- Barometric Pressure
- Dew Point Temperature
- Wet Bulb Temperature (Psychrometric)
- Pressure Trend
- Heat Stress Index
- Relative Humidity
- Wind Chill
The new 3550FW meter has Bluetooth connectivity to pair with the Kestrel app for the ability to wirelessly view, share, and export weather data from a mobile device. Download the Kestrel app from the app store to take advantage of the all the features available.
Features:
- Bluetooth Wireless Connectivity
- 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
- Free Spare Battery
Physical Specifications:
- Dimensions: 4.8 x 1.7 x 0.7 in. / 122 x 42 x 18 mm
- Weight: 2.3 Ounces / 65 Grams
- MFG Part# 0835FWLCORA, Model# 3550FW (Orange)
Features
Wind Speed, Temperature, Barometric Pressure, Relative Humidity, Wind Chill, Heat Stress Index, Dew Point Temperature, Altitude (Barometric), Wet Bulb Temperature (Psychrometric), Wind Direction, and Bluetooth
Includes
(2) CR2032 Lithium Batteries, Instructions, Lanyard, Certificate Of Conformity (Spec Sheet), and Protective Cover - Hard Slip-on
Kestrel 3550FW Weather Meter Sensor Specifications
Sensor Specifications
Wind Speed |
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| Units of Measure: | mph | kt | B | m/s | ft/min / km/h |
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| 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 |
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| Units of Measure: | Fahrenheit, Celsius |
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| 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 |
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| Units of Measure: | inHg, hPA, mb |
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| 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 |
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| 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 |
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Barometric Pressure: |
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Altitude |
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Dew Point |
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Wet Bulb Temperature - Psychrometric: |
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Heat Index |
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