WTM-404 Portable Tint Meter Window Tint Tool with Automatic Calibration for measuring VL (Visible Light) UV IR Transmittance and Rejection of Solar Film, Stick-film Glass, Car Window Tint

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This portable Transmission Meter is use for measuring light transmission in various materials. It can simultaneously assess the visible light transmittance (VLT), infrared (IR) rejection/transmission value, and ultraviolet (UV) rejection/transmission value of solar films, adhesive films, and glass surfaces. Whether you're working with solar film installations or other light-sensitive materials, this tool provides a comprehensive analysis, ensuring you have precise measurements at your fingertips.


  • Multi-function meter - UV rejection/transmission measure, IR rejection/transmission measure, light transmittance measure
  • Three display interface options are available: UVR/IRR/VLT, UVT/IRT/VLT, and VLT
  • LCD Dot matrix display with backlight function
  • Always upright reading with a data hold function
  • Real-time dynamic self-calibration function (automatic self-calibration after powering on)
  • Low power consumption with low battery indicator- can maintain continuous measurement for more than 100 hours
  • Auto and manual shutdown
  • User friendly easy operation procedure
  • Applicable to solar film, stick-film glass, and other materials performance exhibition, production, quality inspection, and other occasions


  • Display: 128 x 128 Dot matrix LCD
  • UV Peak wavelength: 365nm
  • IR Peak wavelength: 940nm/ 1400nm
  • Visible light wavelength: 380-760nm, conform to the CIE photopic vision function standard
  • Accuracy: ±2% (Colorless and transparent material)
  • Resolution: 0.1%
  • Test Slot: 6 x 58mm/0.23 x 2.28in(W*D)
  • Power supply: 4 x AAA alkaline battery
  • Dimesion: 146 x 73 x 24mm (5.75 x 2.87 x 0.94in)
  • Weight: approx. 187g (including batteries)

Set Includes:

  • 1 x Transmission Meter
  • 4 x AAA Alkaline Battery
  • Eglish Instruction Manual
  • Carrying Pouch
  • Standard factory packaging

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