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Traceable® Humidity-On-A-Card Complete
Description
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. Readable to an accuracy of ±5% RH at
75°F (24°C).
Watch colors change as humidity rises/falls
Dual ranges are Current and Maximum. 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.
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).
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. To assure accuracy an individually serial-numbered
Traceable® Certificate is provided from our ISO 17025 calibration
laboratory accredited by A2LA. It indicates traceability to standards
provided by NIST (National Institute of Standards and Technology). Card
size is 4 x 4 inches.
Control Cat. No. 4192
Traceable® Humidity-On-A-Card
Pack of six cards.
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