... is handheld and intelligent multi-function measurement instrument integrating with LD source and optical power range module, SAT-F5 could provide ... light source of single/double/three-wavelength continuous light and all ... SAT-4E seriesoptical power meter, and the wavelength of light source :650nm ,850nm,1300nm, 1310nm, 1550nm, 1625nm, 1490nm. It is ...