What is the material of the humidity card?

The card is made of white blotting paper with a weight of 300 g/m2.

Does the card contain cobalt dichloride?

No, the product is formulated without cobalt dichloride.

Precision Humidity Indicator Card for PCB Humidity Control

Name: Precision Humidity Indicator Card for PCB Humidity Control
Brand: Xiamen Qianyu Technology Co., Ltd.
SKU: 2240875765

Fujian, ChinaXiamen Qianyu Technology Co., Ltd.

US$0.03-0.05

4,000 Pieces

Sample price:US$0.01/bag.Request sample

Product profile

Customization

Available

Type

In-Mould Label

Material

Paper

Model NO.

QY-HI3S

Printing Type

Offset Printing

Feature

Humidity Indicator

Usage

Packaging Film, Medicine, Sensitive Components

Humidity Range

10%-60%

Applications

Sensitive Electonics Components

Configurations

5%-95%, From 1 DOT to 6 Dots

Cobalt Dichloride

Not Contained

Color

Blue(Dry) Turns to Pink(Moist)

Sample

Available

Transport Package

Carton

Specification

25PCS/BAG, 8BAGS/CAN, 20CANS/CARTON

Trademark

Customize

Origin

China

Key features

Reversible Color Change: Changes from blue to pink when humidity exceeds threshold and reverts to blue when dry.

Wide Humidity Range: Available configurations from 5% to 95% with 1 to 6 dots for precise monitoring.

Non-Toxic Material: Made from white blotting paper, non-toxic, harmless, and compliant with environmental regulations.

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

Sensitive Component Protection: Ideal for semiconductors, circuit boards, precision parts, and military equipment.

Clear Visual Indicator: Heavy black printing on white paper allows for easy color comparison and quick assessment.

Standard Humidity Levels: Indicates 10%, 20%, 30%, 40%, 50%, and 60% relative humidity levels.

Cost-Effective Solution: Convenient and inexpensive method for detecting environmental humidity and desiccant effectiveness.

Company profile

Xiamen Qianyu Technology Co., Ltd.

Fujian, China

CertifiedBusiness Type: Trading CompanyExport Year: 2017-04-06 CertifiedNearest Port: Xiamen PortAverage Response Time: ≤3.69h CertifiedTerms of Payment: LC, T/T, D/P, etc. CertifiedInternational Commercial Terms(Incoterms): FOB, CIF, CFR, EXW

AI-Powered supplier vetting

SummaryXiamen Qianyu Technology Co., Ltd. is a China-based limited trading company established in 2016, focused on cleanroom wipes, nonwoven and industrial wipes, swabs, ESD garments, sticky mats, finger cots, and related products. It reports five production lines, stated product output capacities, ISO 9001 certification at its factory, SGS testing for products, and customization supported by factory equipment and R&D teams. The supplier claims delivery within 15 working days in both peak and off-peak seasons and reports that 90% of sales are exports. However, the company has only four employees, fewer than five quality-control staff, one R&D engineer, and two years of staff experience reported. Evidence of customer activity is limited to one recorded trade transaction and one associated buyer; therefore, customer depth and broader financial credibility remain insufficiently established.

Supplier typeThe supplier is explicitly identified as a trading company and limited company registered in Xiamen, China. Its stated business covers the supply of cleanroom, industrial, ESD, and related products across multiple industries, indicating a product-sourcing and distribution role rather than a clearly established standalone manufacturer.

CertificationsThe supplier states that its factory has been certified to ISO 9001 and that all products are tested by SGS. These are explicit quality-system and product-testing claims, although the provided information does not include certificate numbers, validity dates, or issuing-scope details.

After-Sales capabilityThe company explicitly promises timely after-sales service and invites customers to contact it by phone or email for ordering and product questions. The slices do not provide service staffing, response-time records, warranty terms, or documented after-sales cases, so the operational depth of this capability cannot be verified.

Production capacityThe supplier reports five production lines, stated output for cleanroom wipes, ESD garments, sticky mats, finger cots, and SMT stencil wipes, and a 95.0 m² manufacturing-plant area. It also states delivery within 15 working days in both peak and off-peak seasons, providing explicit evidence of defined capacity and lead-time commitments, although the small facility and limited staffing may constrain scale.

Customization capabilityThe supplier explicitly identifies customization as a strength, attributing it to precise factory machining equipment and professional R&D teams. This directly supports the availability of customization services, though no examples of customized products, minimum requirements, or completed projects are supplied.

Product Q&A

Q:How does the humidity indicator card work?

The card changes color from blue to pink when humidity exceeds the specific threshold. It can revert to blue if the environment becomes dry, though this process requires sufficient desiccant.

Q:What humidity levels can this card detect?

It is available in configurations ranging from 5% to 95% humidity, with options for 1 to 6 dots, including standard levels of 10%, 20%, 30%, 40%, 50%, and 60%.

Q:Is the humidity indicator card safe to use?

Yes, it is non-toxic, harmless, and compliant with environmental regulations of various countries.

Q:What is the shelf life of the card?

The shelf life is 2 years from the date of manufacture, provided the container is not opened or damaged.

Q:Where can this card be applied?

It is suitable for semiconductors, electronic equipment, hardware devices, circuit motherboards, precision parts, and military applications.