You are about to set up an account. For this process, you will be asked to provide personal information about yourself and possibly your organization. We invite you to read our Privacy Policy concerning any use of this information that you provide to us.

Benefits of setting up an Account:
  • Allows personalized content such as Favorite Items to be viewed.
  • Conveniently stores information to be used at checkout, such as billing and shipping addresses (Payment information is never stored on the website).
  • Get customized pricing for your organization (when available).

Join Our Mailing List!

Preferred Email Format

* Required

Advanced Search

Traceable® Humidity-On-A-Card

By Control
Traceable® Humidity-On-A-Card

Unique humidity card indicates both the current humidity and the maximum humidity attained. Easy-to-read cards are ideal for use with bottles, chemicals, plastic bags, electronics, desiccators, and storage containers. Easily monitor humidity levels in shipments, optics, and packaging.

Watch colors change as humidity rises/falls
Dual ranges are Current and Maximum Memory. Current range is 0 to 100% relative humidity. Color changes from blue to lavendar in increments of 10% RH. Reversible indicator changes color as the humidity increases and decreases. Readable to an accuracy of ±5% RH at 75°F (24°C).

View maximum %RH reached
Maximum relative humidity attained is indicated by the highest numbered hole containing dissolved crystals. Dissolved crystals will cause the paper around the hole to turn blue. Once dissolved, the reading will not change. (NOTE: for crystals to dissolve properly the humidity must be maintained at or above the indicated value for a minimum of 24 hours). Readable to an accuracy of ±5% RH at 75°F (24°C).

Arrives ready for use
Each card is individually sealed in a clear moisture-barrier bag with a Humidity Sponge™ desiccant to keep the card dry and provide for an extended shelf life. Individually serial-numbered Traceable® Certificate is provided from our ISO 17025 calibration laboratory accredited by A2LA. It indicates traceability to standards provided by NIST. Card size is 4 x 4".

Cat.No. Name Addl. Info. EA    
291-4192 Traceable® Humidity-On-A-Card Pack of 6 Cards $60.82
Add To Favorites

The following items have been added to your cart:

Choose a favorite list for this item:

Catalog Number Description Price

Request Literature

Please fill out the form below if you want to request literature from Krackeler Scientific.


Quick Order

* Required

New Year Price Updates

We are currently working diligently to update our website pricing information for the New Year. If you place an order, you will be acknowledged with any corrected pricing. If you'd like the most current information sooner, please don't hesitate to drop us an email or give us a call and we'd be happy to assist. Thank you for your patience while we are updating.


Play Video

To Request a Quote

  1. Search or Browse for items and add to them to your Shopping Cart.
  2. Click the "Request Quote" button at the bottom of the Shopping Cart page.
  3. Fill out required fields.
  4. Optionally you can convert to standard checkout mode by choosing a payment type.
  5. Click "Request Quote" at the bottom of the page.

You will be contacted with a quote.

To Order From a Quote

  1. Enter a quote number below
  2. Click "Checkout" (a special place holder item will be added to your cart)
  3. Enter any additional instructions in the comments section at checkout.

Customer service will contact you with an order confirmation.

Back to Top