Keep my session open?
Ending In 
Your shopping session has expired.
Your session has expired. For your security, we have logged you out.
Would you like to log in again?

VWR® Traceable™ Humidity-On-A-Card™ Card

Supplier: VWR International
VWR® Traceable® Humidity-on-a-Card™
Unique humidity card indicates both the current and the maximum humidity attained.

  • Easy-to-read cards
  • Memory indicator is nonreversible
  • Accurately monitor humidity levels
  • Individually sealed in a clear moisture-barrier bag

Easy-to-read cards are ideal for use with bottles, chemicals, plastic bags, electronics, desiccators, and storage containers

Maximum Memory range (the highest humidity attained when exposed for 24 hours or more) is 50 to 90% RH. Blue crystals dissolve in increments of 10% RH. Memory indicator is nonreversible. Readable to an accuracy of ±5% RH at 24°C (75°F).

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

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.

Certifications: A serial numbered certificate is provided from an ISO 17025 calibration laboratory accredited by A2LA to indicate instrument traceability to standards provided by the National Institute of Standards and Technology.



Expand All / Collapse All
W x L VWR Catalog Number Unit Price Quantity
10.2 x 10.2cm (4 x 4") 15551-012 Pack of 6 Retrieving
Generate Barcodes Barcode Label Format: 
Generate PDF Catalog Page

Enter Details

Select the article for which you are looking for Certificate

Indicate the Lot Number. This field is mandatory.

Enter Certificate Details

Enter the Lot number:

Choose from recent batch/lot numbers:

Review & Compare Alternatives
We found alternative products that can save you up to  per item-unit.  To compare product details, select up to 3 alternatives below and click Compare Selected. To add items to your basket, enter a quantity and click Add to Basket.

Original Product:

Description Catalog Number Availability Unit Your Price Price Per Qty

A new look and a renewed commitment

Built on the features & resources you know, optimized with innovation from Avantor®. Our new brand symbolizes agility and our ability to adapt to customer needs.

Learn More Start Shopping