Wind Meters

Find a wide selection of accessories for Kestrel wind meters including carry cases, tripods, calibration kits, replacement impellers, compasses, PC interfaces and more to ensure your wind meter is compatible with your application.

The Kestrel 4000 Pocket Weather Tracker and the Kestrel 3000 wind meter, Kestrel 2000 weather meter, and Kestrel 1000 wind meters.

The Kestrel 4000 weather tracket can measure every major environmental condition. The latest version of the Kestrel Pocket Wind Meter gauges, among other things, barometric pressure, temperature, humidity, wind speed and heat stress.

The 3.6-ounce Kestrel 4000 tracks data for up to four months and keeps a record of historic minimum, maximum and average readings for every measurement. The Kestrel 4000 pocket weather tracker, which features Spanish and French language capabilities and yes, it is weatherproof.

The Kestrel 4000 wind meter and pocket weather tracker may even be helping U.S. troops in Central Asia.

Helping you find weather stations, wind meters, anemometers, rain gauges, and pocket weather trackers from Nielsen Kellerman, Lacrosse, Davis Weather and more. The popular Kestrel 1000 wind meter, Kestrel 2000 wind and temperature meter, Kestrel 3000 wind temperature and humidity meter and the Kestrel 4000 pocket weather tracker which also features built in density altitude and an altimeter. The new Kestrel 4500 pocket weather station included a digital compass to accurately determine wind direction along with current weather conditions.

Every single Kestrel wind meter and weather station manufactured at Nielsen-Kellerman is calibrated for every single value, either directly against NIST-traceable standards or against an intermediary standard that is calibrated daily.

What does that mean for the customer? They can be absolutely sure that their weather readings are accurate to the stated specifications. Some competing weather instruments claim the same specifications as Kestrel wind meter and weather station, but only Kestrel wind meter and weather station certifies their accuracy.

Not only is every Kestrel wind meter and weather station guaranteed accurate when it leaves the factory, but accuracy can be ensured by field and factory recalibration for years of reliable performance. Relative humidity, wind, and barometric pressure measurements on each Kestrel wind meter and weather station can be calibrated in the field, no matter how old the Kestrel wind meter and weather station.

Relative humidity is tricky to measure particularly in a sealed product. But, with wild land firefighters among our leading customers, we know it is essential to get it right. Accurate temperature measurement is critical to calculating relative humidity. With Nielsen-Kellerman's patented Kestrel wind meter and weather station dual temperature sensor, it's not necessary to wait the 20 to 40 minutes that would normally be required for the unit temperature to equilibrate to the air temperature after a temperature shift. The Kestrel wind meter and weather station instantly and accurately calculates relative humidity accuracy of +/- 3% RH from 5 to 95%.

The humidity sensor in the Kestrel wind meter and weather station has been selected for long-term stability and reliable performance even at very low and very high humidity conditions. Every Kestrel wind meter and weather station is calibrated against NIST-traceable standards, and can be recalibrated in the field with the Kestrel wind meter and weather station RH kit.

Unlike most watches and other products with a temperature measurement, the Kestrel wind meter and weather station sensor is outside the case to ensure it measures the air, not your hand or pocket. The "curls" serve to further isolate the temperature sensor from the effects of the case temperature. Simply wave the Kestrel wind meter and weather station back and forth a few times and you'll have accurate air temperature readings in seconds.

And, since the Kestrel wind meter and weather station is completely waterproof, you can actually take water temperature and snow temperature readings. Just ask the US Biathlon team they used Kestrel wind meter and weather station 4000's in the 2006 Winter Olympics to measure air and snow temperature to determine the appropriate wax to use on their skis.

Nielsen-Kellerman specifies IP-67 sealing for every Kestrel wind meter and weather station. This means that a Kestrel wind meter and weather station is totally protected from dust and can be submerged in water to 1 m (3ft) for up to 30 minutes without any leakage.

To ensure that each Kestrel wind meter and weather station meets this standard, we subject each one to a vacuum leak test after final assembly. We've heard of one Kestrel wind meter and weather station product tester who sank it in a lake for a full day of fishing, then pulled it out and put it back to work, that's dedication! The appearance of Kestrel wind meter and weather station meters employed in underground coal mines is testimony to their dust-resistance.

The entire Nielsen-Kellerman Kestrel wind meter and weather station line is designed and built in the USA?no other handheld weather meter is.

Some electronic components have to be sourced overseas these days, but we buy American wherever we can. Having close control of our manufacturing facilities is part of the reason our inventory system works, we have a 97% on-time ship rate. We believe US manufacture is the only way we can ensure that every Kestrel wind meter and weather station will do its job right, and we also believe it's important to do our part to keep manufacturing alive and well in the US.

The Kestrel wind meter and weather station impeller measures 1 inch across and turns on a Swiss precision pivot mounted on sapphire bearings. Its large size ensures accurate readings even if pointed off-angle from the wind, and its very low start-up speed allows measurement of the lightest puffs of wind. Units with smaller impellers simply can't match the Kestrel wind meter and weather station's performance.

If damaged, a new calibrated impeller can be purchased and popped in without tools, restoring like-new performance. We designed and patented this removable impeller technology, and it will keep your Kestrel wind meter and weather station Meter accurately measuring the wind speed for years.

Meters that provide wet bulb temperature readings without a pressure sensor assume standard atmospheric conditions, leading to highly inaccurate readings on low-pressure days, at high altitudes, or in any other "non-standard" situation. Kestrel wind meter and weather station meters offer wet bulb temperature readings only on our pressure-sensor equipped units, ensuring accuracy in all conditions.

If you would like to have your Kestrel wind meter and weather station checked for accuracy and restored to like-new performance, Nielsen-Kellerman offers a Tune-up service that includes a new impeller, new batteries and full recalibration for a fraction of the original purchase cost. We also offer NIST-traceable Certificates of Calibration for industries that require it.