Product Details

Company Name: Dongguan Weiyi Electronic Technology Co., Ltd.

Product Title: 9-Point Brown Cobalt-Free Humidity Indicator Card (HIC) 10%~90% RH, Vacuum Packed Moisture-Sensitive Card for Anti-Moisture Protection, Customizable OEM Available

Product Parameters

Parameter	Specification
Product Name	Cobalt-Free HICCF901 Humidity Indicator Card
Physical Form	Card Type
Humidity Range	10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90% RH
Color	Brown
Single Card Size	36mm * 146mm
Application	PCBs, ICs, optoelectronic products, semiconductors, aerospace components, medical devices, automotive electronics, optical instruments, precision metal parts, etc.
Packaging	250 pieces per can

Product Description

Humidity Indicator Cards (HICs) are compact paper-based instruments designed to monitor the relative humidity (RH) levels in sealed environments. The percentage values marked above or next to each indicator circle correspond to the relative humidity threshold that triggers a color change.
Our cobalt-free humidity indicator cards are engineered to meet strict international regulatory standards and industry requirements, ensuring reliable moisture monitoring for sensitive electronic components and devices. The color change accuracy fully complies with JEDEC standard J-STD-033B.
As a leading humidity indicator card manufacturer, we produce these cards to the following rigorous standards:
1.2004/73/EC (EU Environmental Protection Regulation)
2.GJB2494-95 (People's Republic of China Military Standard)
3.MIL-I-8835A (US Military Packaging Standard)
4.J-STD-033B (JEDEC Standard for Electronic Components)

Key Advantages

Cobalt-Free & Eco-Friendly

Complies with RoHS and REACH directives, eliminating hazardous cobalt compounds for safe use and disposal.

High Accuracy

Precise color transition at each humidity threshold for dependable moisture level detection.

Reversible Function

Color indicators revert to their dry state as humidity decreases, enabling repeated use and continuous monitoring.

Wide Humidity Coverage

10% to 90% RH range provides comprehensive monitoring for diverse applications.

Cost-Effective Protection

An affordable solution to prevent moisture damage and extend the lifespan of sensitive products.

Typical Applications

Our humidity indicator cards are ideal for monitoring moisture in sealed packaging across a range of industries:

Electronics Manufacturing: Protecting PCBs, ICs, semiconductors, and optoelectronic devices during storage and shipping.
Aerospace & Defense: Ensuring the integrity of precision military components and avionics.
Medical Devices: Safeguarding sensitive diagnostic equipment and electronic medical instruments.
Automotive Electronics: Shielding ECUs, sensors, and control modules from humidity-related failures.
Optical Products: Preventing fogging and damage to lenses, cameras, and laser components.
Industrial Components: Monitoring moisture in bearings, metal parts, and precision tools to avoid corrosion.

Usage Instructions

Color Change Principle

As ambient humidity rises, the indicator dots transition from their dry color (brown) to their moist color (blue).

Reversible Operation

When humidity levels drop, the moist indicator dots will revert back to their original dry color (brown).

Reading Humidity

The humidity value next to the first dot that changes to the moist color indicates the current relative humidity level.

Storage & Handling Precautions

1.Store the humidity indicator cards in their original sealed iron can or aluminum foil bag to ensure indicator dots remain unchanged before use.
2.Replace the desiccant inside the can after the packaging has been opened three times.
3.Keep the product in a dry, cool environment, away from direct sunlight and water immersion.

Available Humidity Indicator Card Options

Card Type	Dry Color (Before Change)	Moist Color (After Change)
Cobalt-Based HIC	Blue	Pink
Cobalt-Free HIC	Brown	Blue
Cobalt-Free & Halogen-Free HIC	Yellow	Blue
Cobalt-Free & Halogen-Free HIC	Blue	Pink