Kestrel 2500 Pocket Weather Meter

 
Kestrel 2500 Pocket Weather Meter
 

Price: $299.00

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Kestrel 2500 Measures

Current Wind Speed

Maximum Wind Gust

Average Wind Speed

Air , Water & Snow Temperature

Wind Chill

Barometric Pressure

Altitude



The Kestrel 2500 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.”

Available in the Night Vison Configuration (Special Order)


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.

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.



Kestrel 2500 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



Kestrel 2500 Includes

A slip-on protective cover

Neck lanyard

CR2032 coin cell battery (Average life 300 hours)

Kestrel Certificate of Conformity

Measurement
Response Time		UnitsOperational RangeResolutionAccuracy (+/-)Specification Range
Wind Speed
1 second  		m/s0.4 to 60.0 m/s0.1Larger of 3% of reading or least significant digit0.4 to 40.0 m/s
ft/min59 to 11,948 ft/min159 to 7877 ft/min
km/h1.0 to 218.0 km/h0.11.0 to 144.0 km/h
mph0.8 to 135.0 mph10.8 to 89.0 mph
knots0.6 to 118.3 kt0.10.6 to 78.0 kt
Beaufort0 to 12 B0.10 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 °F0.11.8 °F-20.0 to 158.0 °F
°C-45.0 to 125.0 °C0.11.0 °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)		inHg0.3 to 32.5 inHg0.010.05 inHgAt 77.0 °F, 22.1 to 32.5 inHg
hPa / mb10.0 to 1100.0 hPa / mb0.11.5 hPa / mbAt 25.0 °C, 750 to 1100 hPa / mb
PSI0.15 to 16.0 PSI0.010.02 PSIAt 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 ft150 ftAt 77.0 °F, <19,700 ft. Max error +/- 98 ft
m-2000 to 9000 m115 mAt 25.0 °C, <6,000 m.  Max error +/- 30 m
Temperature compensated pressure (barometric) altimeter. 
Wind Chill  
1 second  		°F0.7 to 135.0 MPH, -49.0 to 257.0 °F0.11.8 °F1.8 to 89.0 mph, -50.0 to 50.0 °F
°C0.4 to 60.0 m/s, -45.0 to 125.0 °C0.11.0 °C0.4 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 SpeedOne-button clear and restart of Max Wind Gust and Average Wind measurement.
Pressure TrendContinuously updating three-hour barometric pressure trend indicator: rising rapidly, rising, steady, falling, falling rapidly.
DisplayReflective 4 digit LCD.  Digit height 0.36 in / 9 mm.
Display Update1 second.
Display BacklightAviation green electroluminescent backlight.
Clock / CalendarReal-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 ShutdownAfter 45 minutes of no key presses.
CertificationsCE certified. Individually tested to NIST-traceable standards (written certificate of tests available at additional charge).  
BatteriesCR2032, one, included. Average life, 300 hours of use, +/-depending on backlight use.
EnvironmentalWaterproof (IP67 standard). Drop-tested (MIL.STD.810F; unit only. Substantial impact may damage replaceable impeller.).
DimensionsUnit 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.
WeightUnit 2.3 oz / 65 g.  Case 1.3 oz / 37 g.

Carry Case (Black)

Carry Case (Black)

This sturdy padded nylon case lets you build a Kestrel 4000 Toolkit perfect for your needs and still carry it on your belt with ease. The top flap...
Spare Impeller (Easy User Install)

Spare Impeller (Easy User Install)

Replacement impeller for all Kestrel models. Simply presses out, no tools required to change.
Tripod Large for Kestrel Meters

Tripod Large for Kestrel Meters

New for Spring 2008! A tripod fitted with the same Kestrel friendly clamp as on our mini tripod. Will accommodate any Kestrel model. Or remove the...
Tripod Small

Tripod Small

Clamp any Kestrel into this sturdy but lightweight tripod to take readings in the field. The tripod?s legs extend to permit a maximum height of 10",...
Vane Mount For All Models

Vane Mount For All Models

The Kestrel Portable Vane Mount is an ingeniously simple accessory designed for extreme light weight and portability. The Vane Mount assembles in...



This product was added to our catalog on Thursday 16 July, 2009.