... touching screen. It also possesses events intelligent analysis and more user---friendly operation.It is an ideal test instrument for the ... hoursKey Tech SpecificationsWavelengths1310nm/1550nm±20nm1550nm/1625nm±20nmFiber Under Testsingle modeRange(km)0.5, 1, 2, 4, 8, 16, 32, 64, 128Working ...