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By certification 
Feature
1.UV transmission meter, IR transmission meter, Light Transmittance Meter, Three function in ONE device.
2. Self-calibration and auto-calibration, NO need any manual adjustments.
3.Simple operation, putting the testing sample in the opening, UV, Visible and Infrared transmission values of the sample will simultaneously display.
1.UV transmission meter, IR transmission meter, Light Transmittance Meter, Three function in ONE device.
2. Self-calibration and auto-calibration, NO need any manual adjustments.
3.Simple operation, putting the testing sample in the opening, UV, Visible and Infrared transmission values of the sample will simultaneously display.
