Variable Moisture Detection Colour Chart

The attached image is a more accurate depiction of how the variable moisture strips behaves. If there is only 20% relative humidity, then the first pad changes; if 40% then 2 pads; 60% 3 pads & at 80% all 4 pads.

Note that this reaction is reversible.

SKU: 33813-2080
Humidity detection strips, 20-40-60-80%; ~50/vial

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Moisture Detection Color Chart,