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Premium Cobalt Free Humidity Indicator Cards (Reusable 6 Spots)
Negotiable
1,000 Pieces
Sample price:US$0.08/bag.Request sample
Product profile
Customization
AvailableDelivery Date
15-30daysFeatures
Convenient, Reversible, CustomizedModel NO.
HIC-10-03/06Inner Packing
Sealed Vacuum Bag+Tinplate CanOuter Packing
CartonCard Size
105X37mmCarton Size
550X230X270mmColor Change
Brown to BlueStandard
Gjb2494-95, Mil-I-8835A, 2004/73/EcTransport Package
5200PCS/260bags/20cans/CartonSpecification
10%-60%Trademark
Topcod/OEMOrigin
China, FoshanHS Code
902580000Production Capacity
1000000 Pieces/DayKey features
High Accuracy Monitoring: Indicates relative humidity levels from 5% to 95% with precise visual feedback.
Reusable Reversible Design: Spots change from blue to pink and revert to blue with desiccant, lasting up to 2 years.
Multiple Spot Configurations: Available in 1, 2, 3, 4, 5, and 6-spot options to suit various packaging needs.
Military & Industry Standards: Meets Gjb2494-95, Mil-I-8835A, JEDEC J-STD-033A, and 2004/73/Ec standards.
Customizable Humidity Levels: Configurable for specific humidity thresholds including 10%, 20%, 30%, 40%, 50%, and 60%.
Fast Response Time: Indicator spots change color within eight hours of exposure to humidity changes.
Eco-Friendly Materials: Made with eco-friendly, water-proof, dust-proof, and lint-free blotting paper.
Comprehensive Certifications: SGS, MSDS, REACH, RoHS, and DMF free approved with silica gel REACH registration.
Company profile

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: ≤8.71h 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.
Product Q&A
Q:How long does it take for the card to react to humidity changes?
A:
Indicator spots will change within eight hours of being exposed to a change in relative humidity.
Q:Can the reversible cards be used again after exposure?
A:
Yes, pink spots can be returned to blue by placing them in a sealed container with one unit (33 grams) of desiccant for 48 hours.
Q:What is the shelf life of the humidity indicator cards?
A:
The shelf life is 2 years from the date of manufacture, provided the container is not opened or damaged.
Q:What humidity levels can these cards indicate?
A:
Cards indicate relative humidities as low as 5 percent and as high as 95 percent, with specific levels like 10%, 20%, 30%, 40%, 50%, and 60%.
Q:Are there different spot configurations available?
A:
Yes, one-spot, three-spot, four-spot, and six-spot cards are currently available in a range of customizable humidity levels.
Send Inquiry
*To:
Foshan Shunde Topcod Industry Co., Ltd.
Foshan Shunde Topcod Industry Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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