1. UV rejection meter, IR rejection meter, Light Transmittance Meter, Three function in ONE device. 2. Small size, portable product for transmission value measurement. 3. Simple operation, putting the testing sample in the "OPENING", Visible light transmission values and UV IR rejection of the sample will simultaneously display. 4. Using for window film, solar film and other transparent material testing. Parameters 1. Size: 93mm x 52mm x 25mm(LxWxH) 2. Weight: 65g (exclude batteries) 3. Thickness of testing sample: less than 0.8mm 4. Resolution: 0.1% 5. Accuracy:+/- 2%(Colorless and transparent material) 6. VL wavelength: 530nm 7. UV wavelength: 365nm 8. IR wavelength: 1400nm 9. Battery: 4*AAA alkaline battery Colour: Blue + Black Material: ABS Package Contents: 1 x Split Beam Spectrometers Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.