Humidity Indicator Card

A humidity indicator card (HIC) is a card on which a moisture-sensitive chemical is impregnated such that it will change color when the indicated relative humidity is exceeded.

The 30%, 40%, and 50% cards comply specifically with MS 20003-2, while the 5%, 10%, and 15% cards are cleared for use with JEDEC Standard 033.

  • Indicate humidity conditions in various types of packaging.
  • Often used in conjunction with a desiccant.
  • Allow instant visual verification of product / environment.
  • Approved for MIL – I – 8835 applications.
  • Low Cost.
  • Spots turn from Blue to Pink to indicate humidity levels.

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