For re-calibration of a Kestrel's humidity measurement in the field, the Kestrel RH calibration kit is available.

The kit includes two salt solutions, two salt bath jars with plastic suspension grids, one water jar to stabilise the temperature and an insulated calibration case.

Every kestrel meter with a humidity sensor features an easy-to-run self-calibration routine for use with this kit.

Calibration Services

For customers requiring independent calibration of their Kestrel, we offer third-party calibration of the humidity sensor. Please refer to calibration services for more information.