Humidity Indicator Car is also called HIC, Humidity discoloration paper, Humidity display card, Humidity test card, Humidity test card, Humidity moisture-proof label, etc.Humidity indicators Car offers a Humidity gradient method that quickly determines when Humidity is hitting the mark, depending on the color spots on the card.When the color on the humidity indicator changes from dry (blue) to wet (red), it is known whether the humidity in the packaging container has reached the degree of damage to the article, or whether the packaging container is ineffective.The humidity indicator card has the characteristics of low price, easy to use, easy to observe and large indicating range (humidity value RH.5%-95%). Moreover, after using the humidity indicator card, the color spots of the indicator card will return to the original dry color and can be reused after being placed in the environment of 100℃ for 5-6 minutes.

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