Here's the one that started it all! Developed in 1995 by NK co-owner, Richard Kellerman, who needed a reliable wind meter for flying his glider. Over 10 years later, it looks a little slicker, and it still gives you the reliable, accurate wind measurements that you need.

Every Kestrel Meter features a large, 1” impeller mounted on a sapphire jewel bearing, which means it starts rotating with the slightest puff of air – 0.3 mph to be exact! And this unique impeller is user-replaceable, too, which means it can easily be replaced if it is damaged or worn.

If your application demands regular calibration, simply pop in a new impeller and the Kestrel Wind Meter is restored to like-new factory calibration standards. The Kestrel 1000 can easily be switched between mph, km/h, ft/min, m/s, knots and Beaufort.

Kestrel 1000 Measures
Current Wind Speed
Average Wind Speed
Maximum Wind Gust

Kestrel 1000 Features
Protective cover with sure-grip overmolding
Data hold function
Large easy-to-read display
Waterproof and floats
Patented user-replaceable impeller
Wide range of wind speeds and low startup speed
Reliable, portable, and easy to use
All instruments and accessories are completely assembled in the USA
5-year warranty

Kestrel 1000 Includes
A slip-on protective cover
Neck lanyard
CR2032 coin cell battery (Average life 300 hours)
Kestrel Certificate of Conformity

• 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).
  Max/Avg Wind Speed	One-button clear and restart of Max Wind Gust and Average Wind measurement.
  Display	Reflective 3 1/2 digit LCD. Digit height 0.36 in / 9 mm.
  Display Update	1 second.
  Display Backlight	Aviation green electroluminescent backlight.
  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.