3 Dots High Quality Humidity Indicator Sticker
Humidity Indicator Cards are small, paper instruments designed to monitor relative humidity levels. These 3 spot cards are reversible and constantly indicate relative humidities as low as 30 percent and as high as 50 percent, they change from Blue (dry) to Pink (humid).
Specifications:
Printing: Standard
Indicating Spots: 30 - 50 % RH
Material: Paper
Dimensions: 78*52mm
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