Humidity Indicator Cards 5,10,15
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By A Mystery Man Writer
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4.7(394)
Product Description
are designed to be moisture-sensitive and is embedded with the base chemical cobalt (III) chloride. The card will remain blue when humidity levels
5%-10%-60% three dots packaging humidity test card - AliExpress
Cobalt Free Humidity Indicator Cards-RISINGSUN
Paper Humidity Indicator - Senze-Instruments Benelux
Humidity indicator for desiccant control, free of cobalt chloride, reversible colour shift from blue to pink.