Traceable 4192 Offers

Features

• Individually sealed cards indicate both current humidity and the maximum humidity attained
• Maximum relative humidity attained is indicated by the highest numbered hole containing dissolved crystals
• Monitor humidity levels in shipments, optics and packaging
• Color changes from blue to lavender in increments of 10% RH
• Current range is 0 to 100% relative humidity
• Reversible indicator changes color as the humidity increases and decreases
• Readable to an accuracy of ±5% RH at 75°F (24°C)
• 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.

Applications

Ideal for use with bottles, chemicals, plastic bags, electronics, desiccators, and storage containers.