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Brand New Item!
Kestrel 2500NV Pocket Weather Meter (Anemometer)
Features Include: Current Wind Speed, Maximum Wind Gust, Average Wind Speed, Air, Water & Snow Temperature, Wind Chill, Barometric Pressure & Altitude w/ Night Vision!
PN# 0825NV
Authorized Dealer
Assembled in the USA!
5-year limited warranty! |
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The Kestrel 2500NV takes the great features of the Kestrel 2000 and adds in a pressure sensor. A three-hour pressure trend indicator helps you predict fish and wildlife activity and know when the weather's going to turn nasty. With its easy-to-use digital pressure altimeter, you have the perfect instrument for any outdoor activity.
In addition to predicting weather activity, barometric pressure also influences a bullet’s trajectory, which is why the Kestrel 2500 is used by shooters and hunters when accuracy is important. US Olympic Rifle Champion Shooter Lones Wigger wouldn’t trust any other instrument. “The Kestrel Meter is essential for target rifle shooting. It helps me win matches, and I rely on it for accurate weather information.”
This model includes NV Configuration
Military personnel and pilots flying in darkness are often concerned with preserving their night vision. Due to overwhelming demand from our military customers, the Kestrel NV line was added in 2005.
Note: The Kestrel 2500NV has a night-vision preserving backlight which helps users to sustain natural night vision. The NV's backlight incorporates an optical filter to reduce overall brightness and minimize blue and green spectrum light to preserve night vision. Additionally, NV backlights are also much dimmer than a standard backlight, making it more difficult to detect with the naked eye in night operations. This backlight appears soft greyish pink, not red, and is still in the visible spectrum, so is not compatible with night-vision equipment.
It takes 30 to 45 minutes for the average eye to adapt to darkness and maximize night vision. Even a short burst of white, yellow, green or blue light “bleaches out” the rod cell photoreceptors in the eye and causes night blindness until the entire adaptation process can take place again. Light in the red spectrum does not cause this “bleaching out”, preventing night blindness and night vision fatigue.
Certified and Guaranteed Accuracy
Every single Kestrel manufactured at Nielsen-Kellerman is calibrated for every single value, either directly against NIST-traceable standards or against an intermediary standard that is calibrated daily. Every unit is shipped with a FREE Certificate of Conformity that states what calibrations were performed, and the certified performance specifications.
What does that mean for the customer?
They can be absolutely sure that their weather readings are accurate to the stated specifications. Some competing weather instruments claim the same specifications as Kestrel, but only Kestrel certifies their accuracy. What does that mean for the customer? They can be absolutely sure that their weather readings are accurate to the stated specifications. Some competing weather instruments claim the same specifications as Kestrel, but only Kestrel certifies their accuracy.
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Kestrel 2500NV Measures
- Current Wind Speed
- Maximum Wind Gust
- Average Wind Speed
- Air Temperature
- Water Temperature
- Snow Temperature
- Wind Chill
- Barometric Pressure
- Altitude
Kestrel 2500NV Includes
- A slip-on protective cover
- Neck lanyard
- CR2032 coin cell battery (Average life 300 hours)
- Kestrel Certificate of Conformity
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Kestrel 2500NV Features
- Real-time clock
- Protective cover with sure-grip overmolding
- Data hold function
- Large easy-to-read display with backlight
- Waterproof and floats
- Innovative design for stability and accuracy in abrupt condition changes
- Patented user-replaceable impeller
- Quick response, external thermistor
- High precision pressure sensor
- Reliable, portable and easy to use
- All instruments and accessories are completely assembled in the USA
- 5-year warranty
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Measurement
Response Time |
Units |
Operational Range |
Resolution |
Accuracy (+/-) |
Specification Range |
Wind Speed
1 second |
m/s |
0.4 to 60.0 m/s |
0.1 |
Larger of 3% of reading or least significant digit |
0.4 to 40.0 m/s |
| ft/min |
59 to 11,948 ft/min |
1 |
59 to 7877 ft/min |
| km/h |
1.0 to 218.0 km/h |
0.1 |
1.0 to 144.0 km/h |
| mph |
0.8 to 135.0 mph |
1 |
0.8 to 89.0 mph |
| knots |
0.6 to 118.3 kt |
0.1 |
0.6 to 78.0 kt |
| Beaufort |
0 to 12 B |
0.1 |
0 to 12 B |
| 1 inch diameter impeller with precision axle and sapphire bearings. Off-axis accuracy -1% @ 5º off-axis; -2% @ 10º; -3% @ 15º. Calibration drift < 1% after 100 hours use at 16 MPH / 7 m/s. Sustained operation above 60 MPH / 27 m/s will wear impeller rapidly and may cause destruction of impeller. Replacement impeller (NK PN-0801) may be field-installed without tools (US Patent 5,783,753). |
Temperature
1 second |
°F |
-49.0 to 257.0 °F |
0.1 |
1.8 °F |
-20.0 to 158.0 °F |
| °C |
-45.0 to 125.0 °C |
0.1 |
1.0 °C |
-29.0 to 70.0 °C |
| Measures air, water and snow temperature. Thermally isolated, hermetically sealed, precision thermistor mounted externally (US Patent 5,939,645). Calibration drift negligible. |
Pressure
1 second
(mb & PSI 4000 model only) |
inHg |
0.3 to 32.5 inHg |
0.01 |
0.05 inHg |
At 77.0 °F, 22.1 to 32.5 inHg |
| hPa / mb |
10.0 to 1100.0 hPa / mb |
0.1 |
1.5 hPa / mb |
At 25.0 °C, 750 to 1100 hPa / mb |
| PSI |
0.15 to 16.0 PSI |
0.01 |
0.02 PSI |
At 77.0 °F, 10.9 to 16.0 PSI |
| Monolithic silicon piezoresistive pressure sensor with second-order temperature correction. Maximum error over temperature range 32 to 158 °F (0 to 70°C) , +/- 0.06 inHg / +/-2.0 hPa. Calibration drift typically -0.03 inHg / -1.0 hPa per year. Pressure sensor may be recalibrated at factory or in field. |
Altitude
1 second |
ft |
-6000 to 30000 ft |
1 |
50 ft |
At 77.0 °F, <19,700 ft. Max error +/- 98 ft |
| m |
-2000 to 9000 m |
1 |
15 m |
At 25.0 °C, <6,000 m. Max error +/- 30 m |
| Temperature compensated pressure (barometric) altimeter. |
Wind Chill
1 second |
°F |
0.7 to 135.0 MPH, -49.0 to 257.0 °F |
0.1 |
1.8 °F |
1.8 to 89.0 mph, -50.0 to 50.0 °F |
| °C |
0.4 to 60.0 m/s, -45.0 to 125.0 °C |
0.1 |
1.0 °C |
0.4 to 40 m/s, -45.6 to 10.0 °C |
| Calculated from the primary measurements of wind speed and temperature. Utilizes the NWS Wind Chill Temperature (WCT) Index, revised 2001, with wind speed adjusted by a factor of 1.5 to yield equivalent results to wind speed measured at 10 m above ground. (Specification temperature limits established by WCT Tables.) |
| Max/Avg Wind Speed |
One-button clear and restart of Max Wind Gust and Average Wind measurement. |
| Pressure Trend |
Continuously updating three-hour barometric pressure trend indicator: rising rapidly, rising, steady, falling, falling rapidly. |
| Display |
Reflective 4 digit LCD. Digit height 0.36 in / 9 mm. |
| Display Update |
1 second. |
| Display Backlight |
Includes a optical filter to reduce overall brightness and minimize blue and green spectrum light to preserve night vision. The NV backlight appears soft greyish pink. |
| Clock / Calendar |
Real-time hours:minutes clock. |
Operational Temperature Range
(LCD and Batteries) |
The operational temperature range of the liquid crystal display and batteries is 14° F to 131° F / -10 °C to 55 °C. Beyond the limits of the operational temperature range, the unit must be maintained within range and exposed for minimum time necessary to take reading. |
| Storage Temperature |
-22 °F to 140 °F / -30 °C to 60 °C. |
| Auto Shutdown |
After 45 minutes of no key presses. |
| Certifications |
CE certified. Individually tested to NIST-traceable standards (written certificate of tests available at additional charge). |
| Batteries |
CR2032, one, included. Average life, 300 hours of use, +/-depending on backlight use. |
| Environmental |
Waterproof (IP67 standard). Drop-tested (MIL.STD.810F; unit only. Substantial impact may damage replaceable impeller.). |
| Dimensions |
Unit 4.8 x 1.7 x 0.7 in / 122 x 42 x 18 mm. Case 4.8 x 1.9 x 1.1 in / 122 x 48 x 28 mm. |
| Weight |
Unit 2.3 oz / 65 g. Case 1.3 oz / 37 g. |
| Kestrel Meters are designed and manufactured at NK’s facility in Boothwyn, Pennsylvania, and are individually calibrated at the time of manufacture. Every Kestrel Meter comes with a Certificate of Conformity to document the unit’s accuracy—all Kestrel measurements are traceable to the National Institute of Standards and Technology, ensuring the highest level of reliability. Additional NIST Calibration and Certification services are available. | | |
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Warranty and Returns:
If you find the product to be not as described in the listing or not operational, contact us at your earliest convience. If we cannot resolve the matter, We will issue a return merchandise authorization number (RMA). If item is returned, return it at your cost within fourteen (14) days in original, undamaged box and packing. Pending inspection, your money will be fully refunded less all shipping and handling charges or exchanged for another unit. Return shipping charges are the responsibility of the customer.
After (14) Days
Nielsen-Kellerman (Kestrel Meters) Plain Language Warranty Here.
Thank You for your interest!
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