Tester RJ45 Network Cables Auto Sleep Tester PoE Switch Cables Description: [POE Switch Testing]: Tester network cables, support online testing of POE switch network cable, can directly test crossover, short circuit, open circuit, open circuit and other cable shutdown conditions when switch, router, computer and other equipment is charging. [Two do modes of choice]: tester network, standard mode and fast display modes, flexible and versatile [Automatic Sleep Function]: Tester Lan network, with automatic sleep function, the time is 10 minutes to prevent exhaustion caused by no shutdown, manual do carry. Specifications: Material: Size: 75mm x 75mm x 25mm/2.95x2.95x0.98 inch Maximum cable length:andgt;1000 meters Maximum withstand voltage: 60V Power: milliwatts Temperature: -10 -50 Humidity: 10%-80% (non-condensing) Storage temperature: -10 -55 The package includes: 1 pc. Tester network cables