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Air Humidity indicator card 6 dots Cobalt-Free
Air Humidity indicator card 6 dots Cobalt-Free

1)Humidity indicator card Cobalt-Free 2)Reversible color change 3) ISO9002,SGS 4)Six dots: 10%-60%

Air Humidity indicator card 6 dots Cobalt-Free

BriefHumidity indicator card can easily measures relative humidity inside the sealed package to allow a quick and low cost inspection of the humidity level is safe or not. The blue indicator dot turms pink, means that RH in the package has or had been reached the RH value of that dot.

Humidity indicator card (also know as HIC, humidity indicator card, moisture indicator ) is a card on which a moisture-sensitive chemical is impregnated such that it will change color when the indicated relative humidity is exceeded. This item is an inexpensive way to quantify relative humidity levels inside sealed packaging. They are available in many configurations and used in many applications, such as PCB, IC, LED, especially military and semiconductor



Air Humidity indicator card 6 dots Cobalt-Free Specification


Colors changed from dry to wet


Common HIC HIC Cobalt-Free A (Green) HIC Cobalt-Free B(Green) HIC Cobalt & Halogen-Free(Green)


Blue to pink

One dot

Yellow to Green

Three dots

Brown to Azure

Four dots

Rose to Yellow

Six dots


Humidity indicator card One single DOT: 8%, 10%, 50% 500PCS/can, Three dots: 5%-10%-15%, 5%-10%-60%, 10%-20%-30%, 20%-30%-40%, 30%-40%-50%, 40%-60%-80%. Four dots: 10%-40%, 20%-50%, 30%-60%. Six dots: 10%-60%. Any printing, size and RH can be made by customers' needs

Usage Directionsa) The humidity indicator dots will change color as the relative humidity increases in the volume of air surrounding the indicatorb) The humidity indicator dots are reversible, and the changed dots will back to original color when the volume of the air is driedc) The humidity indicator shows the most accurate value when the temperature is 23°Cd) Store humidity indicator cards in original sealed iron can. Immediately seal the can after every opening. The dot shows normal color before usagee) Store in dry, cool area and keep them out of direct sunlight and away from water.

Applicationa) Electronics, PCBb) Optical components, synthetic material, organic materialc) Metalsd) Bulk packaging, preservation package

Application: Printed Circuit Board, electronic packaging, optical equipment, Electronic equipment packaging, Electronic products, optical components, military products, metal products, Organic materials, synthetic material, protective packaging.

Storagea) Keep sealed and dryb) Keep away from direct sunlight.

Air Humidity indicator card 6 dots Cobalt-Free

Air Humidity indicator card 6 dots Cobalt-Free

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