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Brown To Green (Cobalt Free)

Humidity Indicator Cards - Cobalt Free

Humidity Indicator Cards: Our new Dry-Packs® Cobalt Free Humidity Indicator Cards turn from Brown to Pale Green. Available in either 3 dot (30-50% humidity) or 6 dot (10-60% humidity). A great tool to use with Dry-Packs® brand Silica Gel Products and help fight moisture issues.

* The amount of Silica Gel (Desiccant) required will depend upon several factors including: the chemical characteristics of the product, volume contents of container, physical properties of the container, and conditions in which container will be stored/used.