Humidity Indicator Card

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Humidity Indicator Card

Humidity Indicator Card (HIC) is a simple to use instrument useful to measure Relative Humidity (RH) percentage in every sealed environment such as a packaging.
HIC give a visual feedback of the RH percentage in the environment as color change when exposed to a given percentage of Relative Humidity. HIC is calibrated in different types to measure RH percentage from 5% to 60%.

Humidity Indicator Cards are reversible.

How to read HIC

Color of the spot
Color Blue Pink Lavender
Read The environment RH percentage is lower than the percentage indicated by the spot The environment RH percentage exceeds the percentage indicated by the spot. The environmental RH percentage is the one indicated by the spot which is
about to change from blue to pink color

Application and Handling


1. Withdraw HIC in quantity factually needed, do not expose HIC in open air for longer than 1 minute. In the case that HIC has changed its color into pink before using, drying at 100℃ until the color turns blue.
2. Store HIC in original container together with desiccant. Replace desiccant after the container being opened for 3 times.
3. Store HIC in dry and cool environment away from sun light and water.
HIC Specification
Type Indicating Dot (%) Dimension (mm) Packing
1H-0010 10 48 * 40 * 0.4 2000pcs/5can/ctn
3H-0515 5, 10. 15 48 * 75 * 0.4 1000pcs/5can/ctn
3H-1030 10, 20, 30 48 * 75 * 0.4 1000pcs/5can/ctn
3H-3050 30, 40, 50 48 * 75 * 0.4 1000pcs/5can/ctn
4H-1040 10, 20, 30, 40 75 * 48 * 0.4 1000pcs/5can/ctn
6H-1060 10, 20, 30, 40, 50, 60 102 * 38 * 0.4 1000pcs/5can/ctn