... in writing or reading ο Built-in lithium battery with high capacity for over 8 hours of operating life ο ... 8,1.6,3.2,6.4,16,32,64,128,256,512km(SMF);0.4,0 ... .8,1.6,3.2,6.4,16,32 (MMF of 850nm)Pulse width5,10,30,80 ... 1m event dead zone and 0.05m high distance resolution, with which you can characterize all events between ... ο Updating application software on-line JIAXUN High Performance Optical OTDR - JX8002