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My Experiments 
- This Humidity Indicator Card is the Highest Quality in the Industry for Humidity Measurement. - Strictly Tested for Clear Color Change
- The Indicator Changes from Blue(Dry) to Pink(Humid). Humidity indicator cards are sensitive to temperature, humidity, atmospheric pressure, and wind. Therefore, they do not work well in the open air. They work well and display an accurate relative humidity level in an enclosed space.
- When You Initially Open the Card, All Dots Sometimes React and Change Color Because They are Exposed to Sudden Humidity. If You Wait for About 30 minutes, the Card will Calibrate and You will be able to Read the Humidity Level. - 6 Spots Humidity Indicating(10%/20%/30%/40%/50%/60% RH - Clear Color Change)
- CONTINUOUSLY & ACCURATELY Displays Humidity Level—If the humidity level decreases, the strip will change to blue (the original colour). Just because the colour has changed to the next level does not mean it cannot return to the previous one. The colours will change depending on the humidity level. Colours may fade with long-term use of more than 20 times.
No resources are currently available for this product.
This will display Shipping & Return.
- This Humidity Indicator Card is the Highest Quality in the Industry for Humidity Measurement. - Strictly Tested for Clear Color Change
- The Indicator Changes from Blue(Dry) to Pink(Humid). Humidity indicator cards are sensitive to temperature, humidity, atmospheric pressure, and wind. Therefore, they do not work well in the open air. They work well and display an accurate relative humidity level in an enclosed space.
- When You Initially Open the Card, All Dots Sometimes React and Change Color Because They are Exposed to Sudden Humidity. If You Wait for About 30 minutes, the Card will Calibrate and You will be able to Read the Humidity Level. - 6 Spots Humidity Indicating(10%/20%/30%/40%/50%/60% RH - Clear Color Change)
- CONTINUOUSLY & ACCURATELY Displays Humidity Level—If the humidity level decreases, the strip will change to blue (the original colour). Just because the colour has changed to the next level does not mean it cannot return to the previous one. The colours will change depending on the humidity level. Colours may fade with long-term use of more than 20 times.
No resources are currently available for this product.
This will display Shipping & Return.
Specifications
| Pack Size | 100/pk, 50/pk, 20/pk, 250/pk, 12/pk |