Kestrel Meter 4000 Weather Meter The Kestrel 4000 Pocket Weather Meter is the baseline wind and weather meter in the Kestrel 4000 series. What sets the 4000 series apart from the rest of the Kestrel family is that these high tech weather meters have the capability to store up to 2000 points of weather data, enabling you to track changes in the environment over time. This unique function opens up an entirely new realm of weather tracking capabilities for Kestrel Meter users. The Kestrel 4000 Pocket Weather Meter is the first in the next generation of Kestrel Meters. It has all the wind and weather monitoring functions available with the Kestrel 3500 Wind Meter, plus the distinct advantage of data storage, graphing functions, and computer interface technology. With these additional options you will be able to record changes in the weather over time, view these changes as graphs on your Kestrel 4000's display, and even upload the data to your PC or Mac with the Kestrel Interface. The Kestrel 4000 series is now available with Bluetooth Technology, which allows you to communicate with your Kestrel at a range of up to 30-feet, and maximize the battery life of your weather meter. Each Bluetooth Meter includes custom communication software designed to quickly and easily configure your data transmission frequency, download logged data, graph data and transfer data to other applications. It is no longer necessary to purchase an interface separately, the new Kestrel Meters with Bluetooth include the software necessary to communicate wirelessly. For military professionals, the Olive Drab NV version of the Kestrel 4000 features a night-vision preserving backlight. Backlight incorporates optical filter to reduce overall brightness and minimize blue and green spectrum light to preserve night vision. (Note: This backlight appears soft greyish pink, not "red", and is still in the visible spectrum, so is not compatible with night-vision equipment.) The advantage the Kestrel 4000 provides to scientists, athletes, firefighters, automotive technicians, and agricultural specialists is immeasurable. With Kestrel 4000 technology, you will not only know the current weather conditions, but be able to track changes in the environment and therefore make predictions as to what may happen next. Included with the Kestrel Meter 4000 is: Soft Carry Pouch, Wrist & Neck Lanyard, 5 Year Warranty, 2 AAA Batteries, Kestrel Certificate of Conformity The Kestrel Meter 4000 Weather Meter measures/features Barometric pressure Pressure trend Altitude Relative humidity Heat stress index Dewpoint Wet bulb temperature Density altitude Wind chill Air, water, and snow temperature Current wind speed Average wind speed Maximum wind gust Waterproof and floats Easy to read, backlit display Time and date Exterior temperature, humidity, and pressure sensors for fast and accurate readings Humidity sensor can be recalibrated in the field with our Relative Humidity Calibration Kit. Minimum, maximum, and average values Automatically store measurements, even when the unit is turned off Manually store measurements with the press of a button Customizable data storage - 4000 data points Graph and recall trends Customize screens to display user-selected measurements Data charting Data upload (with optional interface) Five languages (English, French, Spanish, German, and Italian) User-replaceable impeller Flip-top impeller cover allows use of other functions while protecting the impeller US Patent Nos. 5,783,753 and 5,939,645 and 6,257,074 All instruments and accessories are completely assembled in the USA The Kestrel Meter 4000 Includes Soft carry pouch Neck lanyard Neck lanyard Batteries - 2 AAA Anemometer Kestrel KESTREL 4000 Weather Meter à¤Ã×èͧÇÑ´¤ÇÒÁàÃçÇÅÁ à¤Ã×èͧÇÑ´ÊÀÒ¾ÍÒ¡ÒÈ