Kestrel Calibration FAQs
All Kestrel meters are accurate and rugged right out of the box. Because Kestrel meters last a long time -- often operating in extreme environments – there are a few things to keep in mind when it comes to calibration. Below are some quick tips on Kestrel 5000 series calibration needs.
Wind Speed - NK recommends replacing the impeller every 2-3 years depending on usage.*
Temperature - The thermistor in the Kestrel 5 series should not need to be recalibrated for the life of the unit.
Pressure - The pressure in the Kestrel 5 series should not need to be recalibrated for the life of the unit.
Humidity - The Kestrel 5 Series and DROP data loggers employ a highly accurate, calibrated, digital humidity sensor. Based on the sensor manufacturer's specifications and NK testing, drift on this sensor over time is minimal and field recalibration is likely to degrade accuracy rather than improve it.
Factory calibration to validate and certify accuracy at a minimum of two RH points is available from NK.
More information about Kestrel calibration is available on the Kestrel Series 5 support page.
* NK sells inexpensive, factory calibrated replacement impellers that can easily be installed by the customer.
If you think one of your sensors is incorrect or have any calibrations questions, please contact firstname.lastname@example.org for assistance.