250 Pack Six-Point Humidity Indicator Card 10-60% PCB Circuit Board HIC Blue Brown Eco-Friendly Cobalt-Free Color-Changing Test Card (Blue,5-10-60%)

What is a humidity card? The humidity indicator card is a card with color-changing circle points. The user can easily identify the sealed container by the color change of the circle point. When the color on the humidity indicator card changes from blue to pink, it indicates whether the humidity in the packaging container has reached a level that can damage the item or whether the packaging container has failed. The humidity indicator card is easy to use, easy to observe, and has a large indication range. After use, the humidity indicator card can be reused. The sensitive indicator component, which has been calibrated, can fix the sensitivity at the relevant humidity level. Circumstances.Within 5% of the degree.

• The humidity indicator card is a card with color-changing circle points. The user can easily identify the sealed container by the color change of the circle point.
• When the color on the humidity indicator card changes from blue to pink, it indicates whether the humidity in the packaging container has reached a level that can damage the item or whether the packaging container has failed. The humidity indicator card is easy to use, easy to observe, and has a large indication range.
• After use, the humidity indicator card can be reused. The sensitive indicator component, which has been calibrated, can fix the sensitivity at the relevant humidity level. Circumstances.Within 5% of the degree.