Cobalt-Free, Halogen-Free Reversible Humidity Ind | RFQ Sourcing Details
Humidity Indicator Cards · Quote on request
This is a product procurement detail page: check specs, images, category context and related sourcing paths before sending an RFQ.
Product specs
Buyer's Digest
Use this page as a product-first sourcing checkpoint before sending an RFQ. Category: Humidity Indicator Cards. Confirm application fit, capacity, materials, destination, lead time and compliance requirements before comparing suppliers.
Original product description
This cobalt-free, halogen-free humidity indicator card provides a visible method for checking humidity conditions inside sealed packaging.
It is intended for packaged camera lenses, optical equipment, electronic components, PCB assemblies, integrated circuits, sensitive devices, and other vacuum-packed items where moisture exposure needs to be monitored. The card uses reversible indicator dots.
When humidity reaches the value assigned to a dot, its color changes from brown, identified as the dry color, to azure, identified as the wet color. As humidity decreases, the dot returns to its dry color.
This behavior allows personnel to inspect package conditions and assess whether the enclosed desiccant and moisture-control system may require attention. Available formats include one through six dots.
Listed card sizes vary by format: 45 × 55 mm for one dot, 50 × 75 mm for two-, three-, and four-dot cards, 55 × 90 mm for five-dot cards, and 105 × 37 mm for six-dot cards. The listed three-dot version measures 75 × 50 mm.
A 5%-10%-60% specification is also stated, but buyers should confirm the exact dot thresholds required for their packaging process. The cards are packed in sealed vacuum bags inside tinplate cans, with cartons used for outer packing. Storage guidance calls for a dry, cool environment protected from sunlight and water.
The source instructions also state that the desiccant in an opened can should be replaced after three openings. Listed production capacity exceeds 1,000,000 pieces per day using automated machinery, and the stated delivery range is 15–30 days. OEM and ODM customization is available.
Supported product information references 2004/73/EC, GJB2494-95, MIL-I-8835A, and JEDEC J-STD-033, and separa which standards, reports, and compliance declarations apply to the exact card formulation and configuration being purchased.
Procurement questions to confirm include the number of dots, humidity threshold values, card dimensions, printing or branding requirements, dry and wet reference colors, quantity per pouch and can, carton configuration, shelf-life or use-by controls, storage and handling procedure after opening, inspection criteria, documentation required for the destination market, delivery schedule, and whether samples will match the intended production specification.
Cobalt-Free | Applications and Buyer Notes
Cobalt-Free is organized as a sourcing-ready Humidity Indicator Cards reference. The page combines visible product or company data with structured procurement cues so buyers can compare application fit, specifications, quantity, quality requirements and lead-t
Applications
- Initial shortlist building for related product or supplier options.
- Specification and application fit review before bulk purchasing.
- Category, keyword and detail-page comparison before sending an RFQ.
Key specifications
- Category
- Humidity Indicator CardsBased on visible page data; confirm exact value in the RFQ.
- Unit
- setBased on visible page data; confirm exact value in the RFQ.
- Dot options
- 1 to 6 dotsBased on visible page data; confirm exact value in the RFQ.
- Formulation
- Cobalt-free and halogen-freeBased on visible page data; confirm exact value in the RFQ.
- Color change
- Brown (dry) to azure (wet)Based on visible page data; confirm exact value in the RFQ.
- Product type
- Reversible humidity indicator cardBased on visible page data; confirm exact value in the RFQ.
- Customization
- OEM and ODM availableBased on visible page data; confirm exact value in the RFQ.
- Inner packing
- Sealed vacuum bag and tinplate canBased on visible page data; confirm exact value in the RFQ.
Buyer tips
- State quantity range and split-delivery needs before price comparison.
- Add certification, material or inspection standards when they affect acceptance.
- For time-sensitive projects, include target arrival date and destination.
- For special applications, describe operating condition, installation environment and duty cycle.
FAQ
What should buyers confirm first?
Confirm application, specification, quantity, destination and lead-time requirements before comparing offers.
Can buyers inquire when specs are incomplete?
Yes. Add model, material, size, use case and inspection needs in the RFQ to make replies comparable.
How should this listing be evaluated?
Check title, category, specifications and related keywords against the actual sourcing requirement.
Source mix: ugc
Key specifications
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