Kestrel 2500 Pocket Weather Meter
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Nature can turn on you at a moment's notice. This Kestrel 2500 measures vital weather conditions like wind speed and temperature, so you can plan ahead and stay safe in unpredictable situations.
Predict fish and wildlife activity as well as when bad weather is headed your way with the three-hour pressure trend indicator. With its easy-to-use digital pressure altimeter, you have the perfect instrument for any outdoor activity - get conditions in seconds right in the palm of your hand.
In addition to predicting weather activity, barometric pressure also influences a bullet’s trajectory, which is why the Kestrel 2500 is used by hunters when accuracy is important.
Available Orange (2500) with a standard backlight or in Olive Drab (2500NV) with Night Vision Preserving Backlight: The Kestrel 2500NV in Olive Drab with night-vision preserving backlight helps users to sustain natural night vision.
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 Battery
- User-Replaceable Impeller
- Waterproof & Floats
- Designed and built in the USA
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Sensor Specifications
Wind Speed | |
Selections: | 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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Selections: | 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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Selections: | 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. |
Calculated Measurements
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Barometric Pressure |
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Altitude |
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