The NK Kestrel 1000 Pocket Wind Meter is very accurate, very tough and very affordable. · You can carry it in a pocket, hold it in one hand, and use it whenever and wherever you need to know wind speed.
It features a large liquid crystal display which is easy to read under almost any conditions and offers three operating modes - wind speed, average wind speed, and maximum wind speed.
The display units can be changed at any time, with choices to suit a wide variety of applications (knots, meters per second, kilometers per hour, miles per hour or feet per minute, Beaufort).

• To measure wind speed, the Kestrel relies on a precision ultralight impeller mounted in jewel bearings. This impeller yields high accuracy (± 3%) and a low startup speed (0.3 M/S). It is shock-mounted in a glass-reinforced plastic housing which can simply be popped out and replaced with a new assembly in the event that the impeller mechanism becomes worn or damaged.
• The Kestrel is waterproof and floats. The hard case slips on and off easily and protects the display and all moving parts from damage.
• Performance is guaranteed for one full year. · US Patent No. 5,783,753