Take the guesswork out of your moisture defense with our Premium 6-Spot Humidity Indicator Cards (HICs). Designed to provide comprehensive, step-by-step relative humidity (RH) tracking inside sealed packaging, these cards give you a precise, immediate visual reading from 10% all the way to 60% RH without requiring digital equipment.
How to Read Our 6-Spot Indicator Cards
Each card features six calibrated, chemically impregnated indicators that change color dynamically as humidity rises or falls:
Blue (Safe & Dry): Indicates that the relative humidity is safely below that spot's threshold.
Lavender (The Reading Point): The active humidity level is read at the spot that turns Lavender (the transitional color between pink and blue).
Pink (Action Required): Indicates that humidity has reached or exceeded that level. If the 30% spot or higher turns pink, it’s a clear warning that it's time to change out your desiccant.
Reversible Precision Monitoring
Our cards are engineered to be fully reversible. If humidity levels temporarily spike and then drop (thanks to our high-efficiency silica gel absorbing the excess moisture), the spots will dynamically shift from pink back to blue. This allows you to continuously track climate integrity over long-term transit or storage cycles.
Comprehensive 10%–60% Range: Perfect for highly sensitive electronics, optical components, textiles, and heavy machinery requiring detailed humidity tracking.
The Ultimate Quality Assurance: Placing one of our cards alongside your goods provides immediate visual proof to your clients that their shipment arrived in pristine, dry condition.
Clear Action Signals: The unmistakable "Danger if Pink" directive makes quality control simple for warehouse staff and end-users alike.
