1. Simultaneously test the rejection rate of ultraviolet rays, infrared rays and visible light transmittance. The operation is simple, just put the measured object into the test slot.Then the three test data will be displayed immediately. The measurement is very fast. 2. Adopt parallel light path light source and the condensing receiver. The window tint meter can test solar films, architectural films, laminated s and large thickness materials. 3. The instrument has a real-time dynamic self-calibration function which can make self-calibration after booting. 4. The solar film transmissin meter has data lock function, you can press the HOLD button on the instrument to lock the data after the test. The test data is still held on the display interface, which makes reading easier. 5. Using a large LCD screen, with backlight. The instrument can be used in the light dark environment.