3 Spot Humidity Indicator Card, 30-40-50%, 125/Can

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Humidity Indicator Cards are printed with moisture sensitive spots which respond to various levels of humidity with a visible color change from blue to pink. The moisture sensitive spots are made of blotting paper impregnated with cobaltous chloride. The humidity inside dry packed barrier bags can be monitored by including HIC inside. When the bag is opened, the card can be examined for proper dryness inside the bag. These humidity indicator cards involve a cobalt compound, but no sulfur compounds.

Popular for military applications, this card meets MS20003 and is approved for use by DOD, NATO, and all governmental agencies for Method II packaging.

  • Card Size: 2" x 3"
  • Cards per can: 125
  • Complies with MS 20003-2 and MIL-P-116
  • Made in the USA

Materials: Blotting paper impregnated with cobaltous chloride
Accuracy: Based on ambient temperature of 75 deg F
Tolerance: Approx. 2.5% for each 10 deg F from 75 deg F

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