UVC Dosimeter™ Verifies UVC Exposure

The UVC dosimeter™ is a safe and efficient tool that can be used to verify UVC exposure of a surface, or an instrument, in healthcare environments, including patient rooms and surgical suites; in laboratories; and also in food and beverage manufacturing and processing facilities.

The technology consists of a photo-chromatic ink that changes color when it is stimulated by certain UVC radiation (253.7 nanometers). The UVC Dosimeter from American Ultraviolet:

  • Can increase the efficiency of UV disinfection processes designed to reduce HAIs and SSIs, by running shorter cycle times, and providing real–time results.
  • Changes color at various energy levels, which correlates with a log reduction of microbiology samples (e.g. MRSA and C. difficile).
  • Measures specific wavelengths of UVC radiation
  • Can be modified to change color at specific energy levels, depending upon the type of pathogen(s) of concern at your institution
  • Is available in quantities of 10, 50, and 100
  • Has been tested in laboratory and hospital environments in the United States, Sweden, and the United Kingdom.

Example of Potential Savings when using UVC Dosimeter

  • 3 Dosimeters per run x 8 runs a day x 365 days a year = 8,750 Dosimeters per year.
  • 8,750 dosimeters @ $4.00 each = $35,000 annual cost
  • One case of C. difficile Infection ≈ $35,000
  • Reduction of C. diff by only one case per year pays for one years worth of Dosimeters

UVC dosimeter

American Ultraviolet is the Exclusive Distributor of the UVC Dosimeter throughout North America. Learn More.

Please review the following documents to learn more about the American Ultraviolet UVC Dosimeter:

Assessment of Organism Reduction and UVC Dosimeter Color Change Due to UVC Output (PDF - 1MB)

RISE Report – UVC Exposure (254 nm) of UV Sensitive Material at Different Irradiation Levels (PDF - 275K)

UVC Dosimeter Status

UVC Dosimeter before dosage delivered

Center of UVC Dosimeter changes to orange to show that a level of energy lethal to MRSA has been delivered

UVC Dosimeter before dosage delivered

Center of UVC Dosimeter is yellow before dosage is delivered

UVC Dosimeter before dosage delivered

Center of UVC Dosimeter changes to pink to show that a level of energy lethal to C.Diff has been delivered


UVC Dosimeter is patent protected technology from Intellego Technologies AB in Sweden, where it has been developed, tested, and approved, and also where it is manufactured.