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Humidity Indicator Cards (Package of 5)

The economical solution for tracking humidity in storage areas

Each square in the scale indicates a 10% humidity range. The scale responds to moisture in the air by changing color, with the break between pink and blue squares showing the current relative humidity. The maximum card has an added feature: a unique irreversible blue-crystal "visual alarm system" that changes color if the humidity reaches levels from 50% to 90%.

Available Sizes:

  • Standard Humidity Card: 2.25 x 1.5"
  • Maximum Humidity Card: 4.5 x 4.5"

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Humidity Cards

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$28.32
SKU:
KB-62031
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