Easy to use: convenient and economical humidity indicator card,work well and display accurate relative humidity level in enclosed space.Place the humidity indication card by it self inside your container with your items. Read the initial humidity level after 30 minutes.
High sensitivity: high sensitivity of humidity indication,relative humidity accuracy ±5%.Large Test Range:Indicator Changes Blue(Dry) to Pink(Humid).6 Spots Humidity Indicating(10%/20%/30%/40%/50%/60% RH)
Reusable:The colors will change depending on the humidity level. If the humidity level becomes lower, the strip will change back to blue (the original color). Long service life,it can be reused after drying.
Wide Range of Uses: widely used in electronic components, precision optical components, etc., such as optical instruments, electronic products, medical and health care equipment, highly sensitive electronic components, PCB, IC, LED and other humidity sensitive components for moisture-proof packaging.NOTE:Should not be in Direct Contact with Foods or Medications.
Tip: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.