The Kestrel should be recalibrated if the Relative Humidity (RH) sensor has been replaced or has shown drift in its RH measurement. The manual explains the steps for calibrating the humidity measurement. Everything needed is included.
Perform dozens of recalibrations to ensure that Kestrel performance is within specifications
Included manual explains calibration details step by step
Includes all items needed for recalibration
Insulated carrying case holds all materials and provides stable environment to perform calibration
Designed for select 3000 and 4000 series Kestrel meters (not compatible with 5000 series)