humidity indicator cards

Humidity indicator cards are impregnated with a cobalt chloride solution that has been carefully mixed to change color as the relative humidity (RH) changes. While not an exact reading of the RH in a sealed environment, they are very useful for telling the user the maximum possibility of humidity in a container. For example, if all of the dots on a card that has 10%-60% listed, then you can be assured that the RH in the container is below 10%. Had the dot at 40% been a pinkish color, you would then know that the RH is in the 40% range. Any products that could be affected by that amount of moisture in the air need to be removed immediately and placed in another container OR you will need to change out the desiccant in order to drop the RH to a suitable level once again.

2.08" x 0.51" Oxygen Absorber

Humidity Indicator Attachment for Flexible Packaging

This humidity attachment proves to be an excellent tool for individuals seeking to monitor the relative humidity of their products over time. It provides real-time readings of humidity levels within the pouch. To use this device, simply pierce the flexible packaging and securely seal the insert, facilitating easier monitoring of humidity levels. This insert can be placed in various types of bags, such as drum liners, large zipper bags, and resin box liners, among others. If you are interested in this item, please feel free to contact us.

Be aware that certain humidity indicator cards available on the market may not live up to their advertised claims. Learn more about fraudulent indicator cards.

Humidity Indicator Cards
Click on the Part Number for details

Part Number Description
6HC1060/10PK 10%-60% RH 6 Spot Humidity Indicator Card; (10/pack)
6HC1060 10%-60% RH 6 Spot Humidity Indicator Card; (100/pack)
6HC3080/10PK 30%-80% RH 6 Spot Humidity Indicator Card; (10/pack)
6HC3080 30%-80% RH 6 Spot Humidity Indicator Card; (100/pack)
HIC0108BBC 8% RH Single Spot Humidity Indicator Card; (100/pack)
HIC0108 8% RH Single Spot Humidity Indicator Card; (500/pack)
637BB08/10PK 8% RH Single Spot Humidity Indicator Card; (10/pack)
637BB08/100PK 8% RH Single Spot Humidity Indicator Card; (100/pack)
637BB08 8% RH Single Spot Humidity Indicator Card; (500/pack)
HIC031030/10PK 10%, 20%, 30% 3 Spot Humidity Indicator Card; (10/pack)
HIC031030/100PK 10%, 20%, 30% 3 Spot Humidity Indicator Card; (100/pack)
HIC031030 10%, 20%, 30% 3 Spot Humidity Indicator Card; (500/pack)
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3 Spot Humidity Indicator Card
10%, 20%, 30% 3 Spot Humidity Indicator Card (100/pack) 0.67" x 2.0" ..
$18.98
3 Spot Humidity Indicator Card
10%, 20%, 30% 3 Spot Humidity Indicator Cards (500/case) 0.67" x 2.0" ..
$86.47
3 Spot Humidity Indicator Card
10%, 20%, 30% 3 Spot Humidity Indicator Card (10/pack) 0.67" x 2.0" ..
$6.93
6 Spot Humidity Indicator Card
10%-60% RH 6 Spot Humidity Indicator Card; (10/pack) 1.5" x 4.0" ..
$8.10
6 Spot Humidity Indicator Cards
10%-60% RH 6 Spot Humidity Indicator Card; (100/case) 1.5" x 4.0" ..
$48.30
6 Spot Humidity Indicator Card
30%-80% RH 6 Spot Humidity Indicator Card; (10/pack) 1.5" x 4.0" ..
$8.10
6 Spot Humidity Indicator Card
30%-80% RH 6 Spot Humidity Indicator Card (100/case) 1.5" x 4.0" ..
$48.30
Single Spot Humidity Indicator Card
8% RH Single Spot Humidity Indicator Card (10/pack) Card:  3.25" x 3.25" ..
$9.28
Single Spot Humidity Indicator Card
8% RH Single Spot Humidity Indicator Card (100/pack) Card:  3.25" x 3.25" ..
$58.75
Single Spot Humidity Indicator Card
8% RH Single Spot Humidity Indicator Card (500/can) Card:  3.25" x 3.25" ..
$147.67
8% RH single spot humidity indicator card
8% RH Single Spot Humidity Indicator Card; (100/pack) Card:  1.5" x 2" ..
$18.55
8% RH Single Spot humidity indicator card
8% RH Single Spot Humidity Indicator Card; (500/pack) Card:  1.5" x 2" ..
$61.63