Hydrion Humidicator Test Kit


Hydrion Humidicator Test Kits have been trusted worldwide for nearly 40 years to test the relative humidity of air.

Hydrion Humidicator Test Kit Benefits

  • A simple, reliable way to test relative humidity
  • Each strip provides accurate results for up to 14 days
  • Made in the U.S.A.
  • 200 Test Kit


Hydrion Humidicator Test Paper measures relative humidity with distinct colour changes at 20%-40%-50%-60%-80%. In the presence of moisture or water vapour, the test paper will change colour; from a deep blue at 20% relative humidity to a bright pink at 80%, with well-defined intermediate colours. The paper may be used to demonstrate the need for dehumidifiers in homes, offices, or storage areas considered at risk for high humidity. With the use of appropriate tables, the paper can also be used to estimate the dew point or frost point.

Each kit contains a 1.2 cm x 15.2 metre roll of Hydrion Humidicator test paper in a jumbo sized dispenser and matching colour chart. Each kit provides for approximately 200 tests and comes sealed in foil to guard against moisture. Note: this kit contains cobalt.

How To Use The Humidicator Test Kit

Hydrion Humidicator Test Paper is easily positioned on a wall, in a chamber or container, and may be left for protracted monitoring. When exposed to air, the Test Paper should be changed every 10 to 14 days for best results.

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