The first step to optimizing performance — knowing the current environmental conditions can often be the difference between finishing in the money and just finishing. Even slight changes in air density, water grains, and density altitude can dramatically affect a machine’s performance. With the added ability to easily measure and track these and other critical factors, such as absolute pressure, temperature, humidity, wind speed and barometric pressure, the Kestrel 4250 Racing Weather Tracker arms racers with the accurate weather data needed to make those last minute jetting or tuning decisions.
Conditions on the track can often vary greatly from those in the pits. The rugged, portable and easy to use Kestrel 4250 Racing Weather Tracker quickly provides racers and pit crews with the most accurate and up-to-date data available where you need it most — at the track. It allows tuners to determine what last minute changes need to be made based on the current local conditions, even immediately before the first lap around the track or pass down the drag strip — giving you that competitive edge at a fraction of the cost of other systems on the market.
The Kestrel 4250 Racing Weather Tracker also features an automatic and manual data storage function, allowing you to easily keep logs of race day conditions from track to track, year to year. The Kestrel PC Interface and Communicator Software allows data to be easily transferred directly to a PC or laptop making long-term storage, in-depth analysis, and detailed charting of stored data a breeze.
The Kestrel 4250 with wireless Bluetooth technology offers the ultimate in portable and accurate environmental data. Now, both real-time and logged data can be transferred wirelessly and automatically to a laptop or PDA. Wireless data transmission eliminates the need for a separate interface and cabling. 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. Data transmission range adjustment allows you to maximize power to communicate with your Kestrel within a 30 foot range, or reduce power for closer, more secure operation. Individual unit ID’s ensure you pair with the Kestrel you want, even when more than one system is operating in the same area. Permanently coded unique 4-digit Pin numbers provide extra security when pairing and transmitting data.
Features:
Altitude & Density Altitude
Moisture Content (water grains)
Relative Air Density
Absolute Pressure
Relative Humidity & Dew Point
Current, Average, & Maximum Wind Speed
Air Temperature
Current & Average Wind Speed
Maximum Wind Gust
One-button clear and restart of Max Wind Gust and Average Wind measurement`
Waterproof & Floats
Manual data capture
Automatic Data Storage
Customizable Data Storage - 2000-point data logger with graphical display for each measurement variable
Auto data storage interval settable from 2 seconds to 12 hours
Minimum, maximum, average and logged history stored and displayed for every measured value
Data Upload with optional PC interface and provided software
Optional RS-232 connection with USB adapter available
Electroluminescent backlight with automatic or manual activation
Real-time hours:minutes:seconds clock, calendar, automatic leap-year adjustment
User-selectable auto shutdown: 15 or 60 minutes with no keypresses or disabled
Data Charting
Five Languages: English, French, Spanish, German, and Italian
User-replaceable Impeller
Flip-top Impeller Cover
Soft Carry Case
Wrist and Neck Lanyards
Five-year warranty from the manufacturer
Specifications:
Wind Speed (sample every 1 second)
0.4 to 60 m/s (0.1 resolution, 3% accuracy)
59 to 11,948 ft/min (1 resolution, 3% accuracy)
1 to 218 km/h (0.1 resolution, 3% accuracy)
0.8 to 135 mph (1 resolution, 3% accuracy)
0.6 to 118.3 kt (0.1 resolution, 3% accuracy)
0 to 12 Beaufort (0.1 resolution, 3% accuracy)
Air Density (sample every 1 minute)
lb/ft3: 32.0 to 158.0 °F, 5.0 to 95.0 % RH, 22.10 - 32.48 inHg (0.001 resolution, +/-2% accuracy)
Satisfaction
Guaranteed!
Try this product for 30 days and if you are not completely satisfied, you may return it for an exchange or a refund of the purchase price (less our actual shipping costs). All products also come with a minimum of a one year manufacturer warranty.
Delivery Options: Free shipping is included on orders over $50. During checkout you'll have additional methods to choose from, including expedited options.
"At WeatherShack, we know and love weather stations and related products. We stock these products in our own warehouse and work with them every day. We also strive to provide excellent customer service. We respectfully ask for your business and hope you'll give us the opportunity to serve you."
-- The Staff at WeatherShack.com
Customer Comments
"Thanks so much for your diligence in helping me get this replacement part for my weather station... It's good to see that outstanding service is alive and well at Weather Shack, and I really appreciate your help."
— Ed B.
Albemarle, NC
"This has been such a joy compared to many other places we've ordered from, I'm sure you will hear from us again."
— Ted M.
Perkins, OK
"Thank you so much for your prompt delivery of the weather station! I was so pleased by how quickly it arrived. My husband loves it. Thanks again for the great service!"
— Angie H.
Troutville, VA
"Thanks. I just placed my weather station order. I am ordering through you because of your timely response to my inquiry. I had emailed the same question to three other companies and you were the only person to answer. Thank you for your help and very quick service. On the net, as in real life, service is everything!!!"
— Steve L.
Orinda, CA
"...the wireless thermometer arrived and as predicted my father was thrilled. Thank you very much for your prompt attention to this order and I will be certain to share my WeatherShack experience with others."
— Ian B.
West Newton, MA
The Kestrel 4250 with wireless 
