It has a clear color ranging from white to blue.
When exposed to humidity, the color will turn blue after 24 hours or more.
You can see the highest relative humidity reached.
The back side is a sticker so it can be pasted on. Color development humidity: 70, 80, 90% RH
Accuracy: ±5%RH (at25℃)
Color tone: White to blue
Operating temperature range: Room temperature
Size: 30×18mm
Quantity: 1 box (20 sheets)
*Storage method: Store in a cool, dry place.
*Expiration date: 1 year after manufacture (unopened)
RoHS2 (EU)2015/863 compliant [About RoHS]
