Humidity Indicator Card For PCB Packaging

Humidity Indicator Cards are designed to provide a simple and reliable way to monitor relative humidity levels inside sealed packaging. By using moisture-sensitive chemical spots, the card gives a clear visual indication of environmental conditions without the need for any electronic equipment.

These cards are widely used in industries where moisture control is critical, such as electronics, semiconductors, medical devices, and precision instruments.

● Instant Visual Detection
The card changes color according to humidity levels, allowing users to quickly assess whether the environment is safe for moisture-sensitive products.

● Multiple Humidity Levels
Available in various RH points such as 10%, 20%, 30%, 40%, 50%, and 60%, providing accurate step-by-step monitoring.

● Reversible Color Change
When used together with desiccants, the indicator spots can return to their original color as humidity decreases, enabling repeated use in controlled conditions.

● Compact and Easy to Use
Lightweight and thin design makes it easy to place inside moisture barrier bags, packaging boxes, or storage containers.

● Customizable Options
Humidity levels, card size, and printing can be customized based on specific application requirements.

Test conclusion: After experimental colorimetric testing, the card humidity value is consistent with the environmental humidity color change, and it is qualified

Note: As the humidity in the surrounding environment increases, the indicator point of the humidity card changes from blue (dry) to pink (wet). The humidity card is a reversible card, meaning that the pink indicator point will change back to blue as the surrounding humidity decreases.

Test method：Compare color in constant temperature and humidity				Test Standard
Model	Test temperature and humidity	Test time			Test result
		0H	0.5H	1H	Qualified	Unqualified
Sample 1	Humidity 5%				●
	Temperature 28°
Sample 2	Humidity 10%				●
	Temperature 28°
Sample 3	Humidity 60%				●
	Temperature 28°

1. Humidity indicator cards are commonly used in:
2. Electronic components and PCB packaging
3. Semiconductor and IC storage
4. Medical and pharmaceutical products
5. Optical and precision instruments
6. Export packaging and long-distance shipping
7. They are especially suitable for use inside moisture barrier bags with desiccants.

• Packed in sealed aluminum bags or metal cans
• Standard quantity: 200–300 pcs per can (depending on model)
• Moisture-proof packaging ensures long-term storage stabilit

 

• Stable and consistent color response
• Suitable for a wide range of industrial applications
• Supports OEM and customized solutions
• Strict quality control for reliable performance

• Stable and consistent color response
• Suitable for a wide range of industrial applications
• Supports OEM and customized solutions
• Strict quality control for reliable performance

Hot Tags: humidity indicator card for pcb packaging, China humidity indicator card for pcb packaging manufacturers, suppliers, factory