... light check automatically ο Remote function via Ethernet ο Double USB interfaces, supporting USB stick and printer and direct cable download to PC ... unnecessary οMultiple wavelength&models,General Specifications:Dynamic rangePlease refer to "OTDR modules specifications"Distance uncertainty±(0.75m + sample space + ... MMF of 850nm)Pulse width5,10,30,80,160,320,640,1280,5120,10240,20480ns5,10,30,80,160 ...