LinkRunner LR10G-100 Network Testing Device - Network Testing, Twisted Pair Cable Testing, Open Circuit Testing, Short Circuit Testing, Split Pair Testing, Crossed Pair Testing, Wiremap, PoE Testing - LCD - USB - Network (RJ-45) - SFP - Twisted Pair, Optical Fiber - 10 Gigabit Ethernet - 10GBase-T, 10GBase-X - 7.2V - Battery Rechargeable - Lithium Ion (Li-Ion):