Fusion Splicer, Splicing Machine, OTDR manufacturer / supplier in China, offering X-80 Mulit-Function Sm, mm, Fiber Optical OTDR, Shinho Sm, mm, X-80 Fiber Optical OTDR, Shinho X-80 Fiber Optical OTDR and so on.
It is the last photo.
You have seen all photos.
This video shows you how to clean the lens of the fusion splicer.
Easy to operate, what you need is a cotton swab with alcohol.