Features: The testing slot is up to 8mm. Compact, portable, battery powered, ultra-low power consumption. UV rejection meter, IR rejection meter, Visible light Transmittance Meter, Three functions in ONE device. Simple operation, rapid measurement, putting the testing sample in the "OPENING", UV, VL and IR transmission values of the sample will simultaneously display immediately. Suitable for measure film, window tint, side windshield etc. Test for performance demonstrate, production, QA, inspection and so on many occasions. Specifications: Material: ABS+Metal Size: Approx.9.3x5.2cm/3.66x2.05in Thickness of Testing Sample: <8mm Resolution: 0.1% Accuracy: ±2% VL for Peak Wavelength: 550nm UV for Peak Wavelength: 365nm IR for Peak Wavelength: 950nm Power Supply: 4x AAA Alkaline Battery (not include) Package Includes: 1x Window Tint Meter 1x User Manual 1x Certificate 1x Portable Bag note: Material: ABS+Metal Size: Approx.9.3x5.2cm/3.66x2.05in Thickness of Testing Sample: <8mm Resolution: 0.1% Accuracy: ±2% VL for Peak Wavelength: 550nm UV for Peak Wavelength: 365nm IR for Peak Wavelength: 950nm Power Supply: 4x AAA Alkaline Battery (not include)