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ILT 770 UV Light Meter Series

Product information "ILT 770 UV Light Meter Series"

Wavelength 215-401 nm; ISO/IEC 17025:2017 Accredited; NIST traceable calibration

The ILT770 is a compact, handheld UV light meter that’s loaded with features. It’s designed for use in a phototherapy booth and comes with built-in data storage, a rechargeable lithium ION battery, and a user-friendly display that shows both numerical and graphical readings. This allows for easy analysis of the system and generation of reports. The units of readout include both Irradiance in W/cm2 and dose in J/cm2, with auto-ranging capabilities (uw/cm2, mW/cm2 uJ/cm2, mJ/cm2, J/cm2 etc).

The ILT770 UV light meter is available in five standard configurations:

  • ILT770-UV: 215-350 nm
  • ILT770-NB: 249-259 nm
  • ILT770-NBUVB311: 275-325 nm
  • ILT770-UVA-350: 315-390 nm
  • ILT770-UVA-1: 326-401 nm

Each package includes an ILT770 light meter, a UV sensor (options include UVC, Narrow band UVC, Narrow band UVB, UVA or UVA-1), a NIST traceable – ISO17025 accredited calibration with certificate, a storage case, a USB cable, PC software for downloading stored readings, and a 1-year warranty. This is a comprehensive solution for your UV measurement needs.

Key features:

SO/IEC 17025:2017 Accredited, NIST traceable calibration for results you can trust

Measures irradiance and dose

  • Graphical display with data analysis
  • Affordable
  • Stores readings that can be downloaded to a PC
  • Compact, portable ergonomic design
  • Rechargeable battery
  • Create reports with downloaded data
  • Easy-to-use interface
  • Made in the USA
  • BNC connector locks sensor in place
  • Linear over 4 decades of light levels

Applications: Validation of UV disinfection systems; testing of UVA and narrow-band UVB sources, e.g. for skin treatment


Please note that International Light products are available from us only in Denmark, Finland, Iceland, Italy, Norway, and Sweden.

Manufacturer "International Light Technologies"

For over fifty years International Light has been developing products and solutions that meet a broad range of needs and solve a variety of challenges. ILT combines technical lighting and light measurement expertise to provide products and services that shine.


International Light Technologies was formed when Gilway Technical Lamp merged with International Light. Gilway and International Light have long and proud reputations for delivering exemplary customer service, on-time delivery, and technical expertise. Formed in 1969, Gilway Technical Lamp has provided customers with off-the-shelf and customized solutions for a full spectrum of light sources. Since 1965 International Light has been solving the inherent difficulties in light measurement through the design and manufacture of a wide range of light measuring instruments, including the most accurate light meters on the market.


In 2024, ILT became a division of Labsphere, Inc., while retaining its name and brand. International Light Technologies offices, R&D efforts, certified state-of-the-art testing and calibration lab, warehousing and much of its manufacturing are located in Peabody Massachusetts, just 15 miles north of Boston.


Please note that International Light products are available from us only in Denmark, Finland, Iceland, Italy, Norway, and Sweden.

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