At Nielsen-Kellerman, weather is serious business! We’ve been researching, designing, manufacturing and distributing our Kestrel Meters for 10 years. NK’s founders and lead engineers, Richard Kellerman and Paul Nielsen, are determined to make the most accurate and reliable hand-held weather devices available. They have developed four patented measurement technologies for the Kestrel family and continue to research ways to improve the Kestrel line and create new products to meet their customers’ needs.
While it may not be obvious when you look at a Kestrel side-by-side with a competitor’s weather meter, there are very important differences that make Kestrel the best choice for almost every application.
Kestrel 4500 Pocket Weather Tracker
For years our customers have been asking for wind direction along with wind speed. The Kestrel 4500 does just that with its built in digital... |
Kestrel 4200 Pocket Air Flow Tracker
The Kestrel 4200 has made HVAC technicians jobs even easier with automatic wet bulb temperature and humidity ratio readings. Of particular interest... |
Kestrel 1000 Wind Meter
Here's the one that started it all! We developed the Kestrel 1000 Pocket Wind Meter in 1995 when NK co-owner, Richard Kellerman, needed a reliable... |
Kestrel 4100 Pocket Air Flow Tracker
The Kestrel 4100 Pocket Air Flow Meter was engineered specifically with the HVAC technician’s many needs in mind. In addition to measuring... |
Kestrel 2000 Pocket Windmeter
For those of you who like to know just how cold and windy it really is, the Kestrel 2000 Pocket Wind Meter is your reality check. Whether... |
Kestrel 4000 Pocket Weather Meter
In 2000, we introduced the Kestrel 4000 Pocket Weather Tracker, and today it is still the most comprehensive pocket weather meter on the market. For... |
Kestrel 3000 Pocket Weather Meter
NK was the first to provide accurate relative humidity measurements from a hand-held weather meter, and the Kestrel 3000 features two patents on its... |
Kestrel 3500 Wind Meter
Many Kestrel users need to know everything that the weather is doing, but don’t need to log the data. We developed the Kestrel 3500 just for... |
Kestrel 2500 Pocket Weather Meter
The Kestrel 2500 takes the great features of the Kestrel 2000 and adds in a pressure sensor. A three-hour pressure trend indicator helps you predict... |
Kestrel RH Calibration Kit
The RH calibration kit includes the following items:three clear, sealable containers one container with magnesium chloride solution one container... |