OUHFCASN Light Transmission Meter UV400 Tester VLT 430nm Blue 395nm Violet LS108 High Precision, High Sensitivity

1. It has a wide range of applications, suitable for materials like eyeglasses, glass, and cellphone lenses 2. Utilize a three-in-one optical path design, enabling the measurement of blue, violet, and visible light transmittance or blocking rate 3. The instrument can measure UV400, assessing the lens's ultraviolet protection capabilities 4. Upon startup or starting a measurement, LS108 automatically calibrates to 100% transmittance or 0% rejection rate 5. The instrument has a test aperture of 1mm and can measure materials up to 20mm thick