Features: 1.MAIN PURPOSES: Can test the rejection rate of ultraviolet and transmit infrared rays, and the visible light transmittance at the same time, and quickly measure and display 3 data results. 2.APPLICABLE MATERIAL: With parallel light path and receiver concentrating design, the detector can test solar film, architectural film, laminated glass and materials with large thickness. 3.CALIBRATION FUNCTION: With real time dynamic self calibration function, after power on, the transmittance is automatically calibrated to 100%, the infrared and ultraviolet rejection rate is 0%. 4.LOCK FUNCTION: With data lock function, after the test, you can press the HOLD key on the instrument to lock the data, and the data of the test sample is still kept on the display interface. 5.OTHER FEATURES: Adopt LCD screen with backlight, can be used without light, 5V power supply, can measure continuously for 180 hours, and will automatically shut down after 3 minutes without operation. Item Type: Solar Film Transmission Meter Material: ABS Ultraviolet: Peak Wavelength 365nm Infrared: Peak Wavelength 940nm Visible Light: 380nm-760nm, in line with CIE photopic vision function standard Measurement Accuracy: 2% (colorless and uniform light transmitting material), the standard sample test used in the factory is better than 1% Resolution: 0.1% Display: Segment Type LCD Testing Slot Size: Width: Approx. 20mm / 0.8in Depth: Approx. 70mm / 2.8in Size: Approx. 175 x 120 x 30mm / 6.9 x 4.7 x 1.2in Battery: 4 x AA alkaline dry battery (battery not included) USB: 5V Power Supply (USB Type C Interface) 1 x Detector 1 x User Manual