1. Two wavelength: 1310/1550nm or single wavelength 1310/1550nm 2. Measurement distance: up to 80km 3. Capacitive touch screen, clear sensitive touch and quick response, can operate by both key and touching screen. 4. Test record is saved as .SOR format. 5. Standard function: OTDR, Event Map, Optical Power Meter, Optical Light Source, VFL, 6. Optical Loss Test, RJ45 Sequence, Flash Light, RJ45 Tracker 7. Keyboard input, can edit and save file name and line number. 8. Support user upgrading. 9. With the USB and TF card data interface, it is easy to export curve data. 10. Fast startup, only 2 seconds to test 11. Multi Language OTDR: Chinese, English, Spanish, Portuguese