【Professional Measurement】The multi-functional transmittance meter can measure multiple parameters such as total haze and transmittance in various transparent and translucent materials, including plastics, glass, and films.It conforms to both ASTM and ISO standards and offers multiple measurement light sources (A, C, D65) to meet the needs of different customers. 【No Preheating Required】The transmittance and haze meter utilizes unique optical technology and software algorithms, eliminating the need for lengthy preheating preparations before testing. Furthermore, the measurement process is unaffected by external light. 【Simple Operations】Digital transmittance meter features a 5-inch TFT LCD screen. Providing a user-friendly interface that is easy to operate and provides intuitive test results. Measurement range: 0-100%, resolution: 0.01%, repeatability: 0.08. 【Connect to Computer】The meter comes with PC software that connects via USB. It provides professional software for measuring and analyzing haze and transmittance, allowing for 20,000 values data storage. This facilitates quality monitoring and measurement data management for businesses, generating test reports, and enabling the analysis, saving, and printing of test results. 【Open Measurement】The open measurement area has no size limitations, allowing for vertical or horizontal measurement, meeting the requirements for haze and transmittance testing of large-sized or liquid samples. The instrument features a aperture design of 21mm, allowing selection of the appropriate test aperture based on the materials size.