How do reversible cards work?

Reversible cards change from blue to pink as humidity increases and return to blue when dried with desiccant in a sealed container.

How should the cards be stored?

Store in a cool, dry area away from sunlight, water, steam, and ammonia gases, keeping them in their original sealed container.

Brown to Azure Cobalt Free Heavy Metal Free Humidity Indicator Cards

Name: Brown to Azure Cobalt Free Heavy Metal Free Humidity Indicator Cards
Brand: Foshan Shunde Topcod Industry Co., Ltd.
SKU: 882221305

Guangdong, ChinaFoshan Shunde Topcod Industry Co., Ltd.

US$0.026

200 Pieces

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Feature

Humidity Sensitive

Type

In-Mould Label

Material

Paper

Usage

Indicating Humidity Inside Package

OEM

Available

Inner Packing

Sealed Vacuum Bag+Tinplate Can

Outer Packing

Carton

Card Size

70*50mm

Carton Size

550X230X230mm

Applications

PCB,IC,LED,Electronics

Transport Package

200PCS/Tin

Specification

3 dots

Trademark

TOPCOD

Origin

China

HS Code

3822001000

Production Capacity

50000 Pieces/ Day

Key features

High Accuracy Monitoring: Indicates relative humidity levels as low as 5% and as high as 95% with high precision.

Reversible and Irreversible Options: Available in reversible cards that reset and irreversible cards that record maximum exposure.

Military and JEDEC Compliance: Meets Mil-I-8835, Mil-Std-2073-1D, JEDEC J-STD-033A, and J-STD-033B standards.

Customizable Configurations: Offers 1, 3, 4, or 6 spot cards with customizable humidity levels for various applications.

Fast Response Time: Indicator spots change color within eight hours of exposure to humidity changes.

Long Shelf Life: Valid for 2 years from manufacture date if the container remains unopened and undamaged.

OEM and ODM Services: Full OEM and ODM customization available for packaging and product specifications.

Wide Application Scope: Suitable for semiconductors, electronics, military, automotive, and museum artifact preservation.

Company profile

Foshan Shunde Topcod Industry Co., Ltd.

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2016-08-16 CertifiedNearest Port: Shenzhen Port, Guangzhou Port, Shunde PortAverage Response Time: ≤7.39h CertifiedTerms of Payment: LC, T/T, PayPal, etc.

AI-Powered supplier vetting

SummaryFoshan Shunde Topcod Industry Co., Ltd. is identified as a Chinese manufacturer of desiccants, humidity indicator cards, aluminum foil bags, and related packaging materials. The supplier reports an ISO9001:2015 certificate, more than 10 production lines, 101 employees, a 11,000 m² manufacturing plant, and stated annual capacities of 9,000 tons of desiccant and 3,000 tons of aluminum foil bags. Its descriptions also reference professional technical staff, testing equipment, and compliance with several product standards. Export activity is documented, with 41%–50% of sales from exports and exporting beginning in 2016. Evidence supports production scale, certification, and international customer experience, but is insufficient to confirm financial strength, customized-production capability, or the scope and reliability of after-sales services.

Supplier typeThe supplier is explicitly classified as a manufacturer in China, while another record describes the company nature as a trading company. Its stated products and manufacturing plant support manufacturing activity, but the conflicting classification means the business profile is not completely consistent.

CertificationsThe supplier explicitly reports an ISO9001:2015 certificate. It also states that its products meet or passed MIL-D-346E, DIN55473, SGS, and RoHS-related requirements, although the slices do not provide independent verification or certificate details for each claim.

R&D capabilityThe supplier claims advanced production lines, specialized machinery for humidity indicator cards and moisture-proof bags, a professional technical team, four R&D engineers, and ongoing product and quality development. These details provide positive evidence of technical and development capability, although no specific proprietary innovations or R&D achievements are documented.

Production capacityProduction capability is supported by 101 employees, an 11,000 m² manufacturing plant, more than 10 production lines, and stated capacities of 9,000 tons of desiccant and 3,000 tons of aluminum foil bags annually. The supplier also reports mechanized production lines and testing equipment, indicating substantial manufacturing infrastructure.

Client casesThe supplier states that Honda, Panasonic, Sony, and other well-known companies cooperate with it, and that its products are sold worldwide with good feedback. These are supplier-reported customer references; the slices do not include order details, verification, or named case studies.