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1. The function of HUMIDITY INDICATOR                                                              

The humidity display card is used to conveniently identify the humidity in a specific sealed package, so as to confirm whether the humidity in the package meets the requirements of the product packaging, and evaluate whether the desiccant in the sealed package has been adjusted to the safe humidity range of the product through the humidity display card.

The humidity display card can easily display the humidity index after the closed packaging through the color change in the corresponding circle (the value printed above or on the side of the circle represents the corresponding humidity range indicated by the circle) :If the color in the circle is blue, it means that the humidity in the package has not exceeded the indicated value;

If the color in the circle is purple, it means that the humidity in the package is close to the indicated value;

If the color inside the circle is pink, it means that the humidity inside the package reaches the indicated value; 

2. Main application range                                                           

Circuit board, Optoelectronic products, Integrated circuit (IC) packaging and testing industry, wafer, electronic material packaging, component packaging, optical products, sensitive device protection.

3. The advantages of HUMIDITY INDICATOR                              

● Quickly determine the humidity of the sealed package

● Display accuracy ±5%

● Wide humidity indicator range

● Reversible display, the temperature reaches 80 degrees 

reversible,Below 80 degrees is irreversible

4. Precautions for use                                                

4.1 It is necessary to confirm in which humidity range the packaged products are safe and can keep the quality of the products from being damaged by humidity. Please refer to the specific product temperature and humidity requirements in order to confirm the specifications of the humidity display card.

4.2 Humidity display card is used to show the humidity of the sealed space, rather than can absorb the moisture of the sealed space, if you need to ensure that the humidity in the sealed package in the required range, need to add desiccant to absorb the moisture of the sealed space.

4.3 Most of the composite packaging materials have a certain permeability performance, the user needs to confirm whether the packaging is sealed, but also need to confirm the water permeability parameters of the packaging materials, comprehensive storage period to confirm the amount of desiccant.

4.4 When the humidity card is transitioned from a high humidity environment (the humidity card has changed to pink) to a low humidity environment, it is necessary to add desiccant to restore the humidity card to blue, or restore the humidity card to blue before use (the humidity card can be restored by baking).

4.5 When the ambient humidity exceeds the highest display point of the humidity display card, the color of all display points placed on the humidity display card under this ambient humidity will gradually change color until all change color.   

5. Specifications of HUMIDITY INDICATOR                                                       

According to the different industries and products, the humidity display card with different humidity display intervals is used. The humidity display card can be designed according to the requirements of customers.

The usual specifications are:

One point card: (single point) Packing quantity :600pcs/ can

Three point card: (30%, 40%, 50%), (5%, 10%, 15%), (20%, 30%, 40%) packing quantity: 250 PCS/cans

Four-point card: 10%,20%,30%,40% (with or without comparison color bar) Packing quantity: 250pcs/ can six-point card: 10%,20%,30%,40%,50%,60%(with arrow or without arrow mark) Packing quantity: 250pcs/ can

Any specifications can be made according to customer's sample