Kestrel 0802 RH Calibration Kit 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 humidities when they are confined to a contained environment.

KIT CONTENTS
-Three clear, sealable containers
-One container with magnesium chloride solution
-One container with sodium chloride solution
-Two wooden scrapers
-Included carrying case to hold all of the above and maintain a stable environment while performing calibration