Kestrel 4250 Racing Weather Tracker

by Kestrel

Product Features

• Air flow tracker designed specifically for professional drivers
• Tracks fluctuations in weather conditions like temperature, humidity, barometric pressure and density altitude
• 2000 point data log lets you keep track of the conditions for each race day
• Cell phone sized; includes clock and calendar
• Powered by 2 AAA batteries (included); 5-year warranty

Product Description

Amazon.com Product Description

The Kestrel 4250 Racing Weather Tracker is the next generation of weather monitoring for professional drivers. Even slight fluctuations in weather conditions like temperature, humidity, barometric pressure and density altitude can affect your car's performance. Kestrel Weather Meters provide quick, accurate information to help you decide what changes need to be made, before even making a lap around the track or a pass down the drag strip.

The Kestrel 4250 Racing Weather Tracker features a 2000 point data log lets you keep track of the conditions for each race day, and the optional computer interface lets you upload all the data to your PC or laptop--making long-term storage, in-depth analysis, and detailed charting of stored data a breeze.

It measures every environmental condition with unrivaled ease and accuracy--and all in a cell-phone sized package. Temperature, humidity, barometric pressure, and density altitude are all continuously measured, and data is stored either manually or automatically. Portable and easy-to-use, Kestrels give racers and pit crews relevant data to gain that competitive edge at a fraction of the cost of other systems currently on the market.

The Kestrel 4250 offers the best portable sensors available, assuring that it's dead-on accurate. Each unit is individually calibrated before it leaves our manufacturing plant, and comes with a certificate of conformity. We even hold four patents on the technology our engineers have developed especially for the Kestrel 4250.

Features:

• Flip Open Impeller Cover
• Large Three-Line Graphical Display
• Backlight
• Wide Operating Range
• Quick-Response External Temperature Sensor
• Clock and Calendar
• Waterproof and Floats

All Kestrel Pocket Weather Meters are made in the USA and covered by a 5-year warranty against manufacturing defects. Additionally, every single Kestrel manufactured is calibrated for every single value, either directly against NIST-traceable standards or against an intermediary standard that is calibrated daily.

What's in the Box?
Kestrel 4250, soft carry pouch, wrist/neck lanyard, 2 AAA batteries, Kestrel Certificate of Conformity

Product Description

In pits around the country, racers have been trading in their bulky and expensive weather stations for a portable Kestrel 4250 Racing Weather Tracker. With water grains, air density, absolute pressure, and density altitude, the 4250 arms racers with the accurate weather data they need to make those last minute dial-in or tuning decisions. Knowing how weather influences the way a car drives is the first step to optimizing performance. And with the Kestrel 4250’s automatic and manual data storage, racers can easily keep an electronic weather data log of race day. The Kestrel Interface and Communicator software makes long-term storage, in-depth analysis and detailed charting of stored data a breeze.

Product Details

• Item Weight: 7.2 ounces
• Shipping Weight: 7.2 ounces (View shipping rates and policies)
• Shipping: Currently, item can be shipped only within the U.S.
• ASIN: B001JEPK1A
• Item model number: 08425
• Average Customer Review: 3.7 out of 5 stars  See all reviews (3 customer reviews)

Customer Reviews

Most Helpful Customer Reviews

3 of 3 people found the following review helpful:

5.0 out of 5 stars Kestrel 4250 Racing Weather Tracker, October 30, 2009

By 

Randle T. Bain (Waller, Texas USA) - See all my reviews
(REAL NAME)   

Amazon Verified Purchase

This review is from: Kestrel 4250 Racing Weather Tracker (Sports)

If you tune by 'density altitude' or 'relative air density' this unit does the job. I am amazed at how many features are packed into this little unit. It does trending and has user programmable screens.

The unit is rugged but not indestructible. My original got sucked into a squirrel cage cooling fan on the dyno with predictable results. I sent it back to Kestrel thinking it was a goner. It was but Kestrel offered a great deal on a replacement unit.

Good repeatable data, solid customer service.

5.0 out of 5 stars great tool for racing, September 3, 2011

By 

M. Zaretsky - See all my reviews
(REAL NAME)   

Amazon Verified Purchase

This review is from: Kestrel 4250 Racing Weather Tracker (Sports)

One of those things you do not really appreciate till you have it,works great too
super fast readings.......saves pistons !~

1.0 out of 5 stars Great specs but flaky, September 2, 2011

By 

positon - See all my reviews

This review is from: Kestrel 4250 Racing Weather Tracker (Sports)

We've been using this for our racing program for a couple years and have found it to have incredibly poor repeatability. For example, the temperature reading varies +7,-3 degrees at the same temperature: a 10 degree variation at the same temperature makes this thing worse than useless. Pressure and humidity are also just as screwed up. If it worked as great as it sounds, it would be wonderful. But unfortunately it just does not measure up - literally.