2 x 3" 5-10-60% Humidity Indicators

These 2 x 3 inch humidity indicator cards deliver visual moisture monitoring at three critical thresholds — 5%, 10%, and 60% relative humidity. As ambient moisture rises past each marked level, the indicator shifts from blue to pink, giving personnel an immediate, no-instrument-required reading of humidity exposure without opening packaging or retrieving a separate device.

These cards are widely used in electronics storage, pharmaceutical distribution, optical equipment handling, and military or aerospace packaging — anywhere moisture-sensitive goods require documented exposure monitoring during storage or transit. The compact card format slides easily inside sealed bags, rigid containers, or multi-layer packaging without displacing product.

Each case contains 125 individual indicator cards. Cards ship via parcel carrier, and case-quantity packaging keeps inventory management simple for facilities running continuous humidity monitoring programs. Consistent use supports quality control documentation and enables early identification of packaging or storage failures before product damage occurs.