Kestrel® 4100 Pocket Air Flow Tracker

I use my Kestrel 4100 in reporting weather events to the National Weather Service. It provides amazing data at the touch of a few keys.

The Model 4100 in combination with the Link for computer has greatly improve my balancing of residential and light commerical systems as well as reduced timely calculations and paperwork.

I have to say the Kestrel 4100 meter has been an asset to our team. We are paranormal investigators and need to know what the atmospheric conditions are every 5 minutes. The weather plays a huge role in our field. Before purchasing the Kestrel 4100 I was at a loss for all the accurate information I needed to obtain. Now, with the Kestrel 4100 we get the data we need and more. It is very easy to use and with the light up screen helps us use it in the dark. I have been asked by many colleagues in our field about the unit and have recommended Kestrel to everyone in our field of studies. Keep up the great Job.

I've suspended a Kestrel 4100 in the rainforest canopy completely exposed to the elements. The unit endured serious winds and punishing rain and it kept on ticking. The unit is small and tough enough to be a great tool to use on the go. Additionally, the customer support I've gotten from NK has been flawless.

We teach HVACR to the offshore and marine environment. Our students must maintain equipment equivilent to a small hotel. Air problems are a mystery for many. Thru the use of the Kestrel 4100 we have been able to take some of this mystery away. They can now calculate cfm's with ease and thru further calculations with the 4100, they can tell what their units are doing capacitty wise. They are so impressed with the 4100, the reaction is i'm going to order me one of these things" The 4100 is easy to carry and is reasonable for its capacitty.

With it's automatic cfm calculation, the Kestrel 4100 Air Flow makes a technician's job easier by eliminating the need for calculators or equations. The user chooses the shape of the duct or opening (rectangle or circle), then enters the dimensions of the duct and the air flow is automatically calculated in cfm.