The Kestrel 1000 is the one that started it all! We developed the Kestrel 1000 Pocket Wind Meter in 1995 when NK co-owner Richard Kellerman needed a reliable wind meter for flying his glider. If necessity is the mother of invention, then quality is the secret to aging gracefully. 14 years later, the Kestrel 1000 looks a little slicker, but still gives reliable, accurate wind measurements that you need. The large impeller turns in the faintest of breezes and is easily replaced. The hard cover lets you throw the Kestrel 1000 into your pack without damage.