10-100% Reversible Humidity Indicator Card
SKU: 25507928161

10-100% Reversible Humidity Indicator Card


This Humidity Indicator Card is a reversible color-change indicator. As the humidity increases, the chemically impregnated spots change from a blue color (DRY) through a lavender, to a pink color (HUMID). As the humidity level decreases, the spots change from a pink color (HUMID), through a lavender, back to a blue color (DRY).

Humidity Indicator Cards are packed in re-sealable containers with desiccant for an extended shelf life. Each of these cards are accurate to ±5% relative humidity (RH) at 75°F (24°C).

Other varieties are also available, some incorporate temperature indicators. Most can be printed with your company's special copy.

Additional Information

Standard Packaging

100 per bag

Card Type



Blue to Pink

Previous Part Number


Product Size

1.50" x 4.25"

Rectangular Card RH

10% – 100%