The Kestrel 1000 measures instantaneous maximum and average wind speeds. Measurement unit options are knots, meters per second, kilometers per hour, miles per hour, feet per minute and Beaufort. Hold it up to measure wind speed. It offers a large, easy-to-read liquid crystal display with +/-3% accuracy. Measures down to 0.3 m/s (0.67 mph). Its impeller and protective housing pop out for easy and inexpensive replacement, and includes a slip-on hard case that protects the impeller, buttons and display from damage in your pocket or toolbox. It is waterproof and it floats. The replaceable battery provides 400 hours of use. 5-year warranty.
The Kestrel 2000 has all the features of the model 1000, and is also capable of measuring wind temperatures and speed. The Kestrel 2000's external temperature sensor and waterproof casing allow you to gauge the temperature of water and snow, as well as open air. Hard slid-on case included. 5-year warranty.
The Kestrel 4000 has all the features of the model 2000, plus the capability to store up to 2000 points of weather data in order to track changes over time, with data storage, graphing functions, and computer interface technology. You can view data as graphs on the Kestrel 4000 display, or with Kestrel's Communicator Software and a Kestrel interface. Data can be downloaded to a PC or Mac for long-term storage, in-depth analysis and detailed charting. Kestrel Interface kits are available with either a serial port connection or USB port connection, and include an interface cradle unit, serial or USB cable and CD with upload easy-to-use software. The Kestrel 4000 is also available with integrated Bluetooth® wireless data transfer, allowing both real-time and logged data to be transferred wirelessly and automatically to a laptop or PDA, eliminating the need for a separate interface and cabling. The 4000 comes with a soft carry pouch. Carry case optional. 5-year warranty.