Check the listing for details. LS183 Optical Light Transmittance Meter Tester with UV IR Light Transmittance. Condition: New. Listed at 424.96 USD. LS183 Spectrum Transmission Meter with 0.1% Resolution UV IR Light Transmittance 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. Detail LS183 is able to simultaneously measure and display UV, Visible and Infrared transmission values. This meter is self-contained light sources and self-calibration. No adjustment is needed. The users only need plug the power supply, turn on the switch and put the sample in the opening. The resulting performance data appear on the display. Parameter: 1. Size: 216mm *134mm *29mm (L*H*W) 2. Testing opening: Wide 47mm * Height 91mm 3. Weigh: 590g 4. Sample thickness: < 47mm 5. Resolution: 0.1% 6. Accuracy: +/-2%(Colorless and transparent material) 7. UV peak wavelength: 365nm 8. Visible light wavelength: 380nm-760nm (Full Weighted Spectrum) 9. IR Peak wavelength 940nm 10. Power supply: 5V AC/DC Adapter