Your Kestrel should be re-calibrated if the Relative Humidity (RH) sensor has been replaced or has shown drift in its RH measurement.
The large container is used to create a stable environment. The small containers are used to hold the saturated salt solution. The saturated salt solutions generate well-defined humidity when they are confined to a contained environment. The Kestrel Calibration Kit allows you to perform dozens of recalibrations in the field to ensure that your Kestrel is always performing within specifications. Included manual explains in detail all of the steps for recalibrating your Kestrel meter. This process will take approximately 50 hours, including setup and calibration.
The RH calibration kit includes the following items:
- Three clear, sealable containers
- One container with magnesium chloride solution
- One container with sodium chloride solution
- Two wooden scrapers
- An insulated carrying case to hold all of the above and maintain a stable environment while performing calibration