1.Portable design with visible light spectrometer function, suitable for light intensity and environmental monitoring applications. 2.Wide measuring range of 400-700nm, providing stable and effective data for light testing. 3.Professional optical structure with 30mm focal length, ensuring accurate and reliable measurement results. 4.Battery-powered for easy operation, for indoor and outdoor environmental monitoring. 5.Compact and lightweight structure, easy to carry and use in different testing scenarios., Manufacturer: ZKLGS