Humidity Indicator Cards 35mm Film this can be reduced by

this can be reduced by combing and manipulating the brush head before use

Internal dimensions (L x W x D): 235 x 156 x 50mm

Enclosure size: 110 x 135mm

acid-free and lignin-free

Humidity Indicator Cards 35mm Film this can be reduced byThese Humidity Indicator scales are designed for monitoring the humidity levels in and around museum cases, artifacts, collectibles, and other storage areas. As humidity changes, the chemically impregnated colours change from blue (more humid) to pink (less humid). The humidity card indicates the current humidity level by reading to the lavender section (in between a pink and blue section). Specs 110mm x 40mm Cards Reads 10% 100% RH levels Pack of 5