These meters have many features that simplify testing.
All controls are menu-driven from the four front panel buttons.
You can calibrate the meter at any arbitrary wavelength. The Smart meter even offers a menu for personalization of features, like what calibration wavelengths are used for testing. These instruments store test results for later readout in a PC for reports, but in a more user-friendly format. You create a list of cables, either on a PC or the instrument itself, and the meter stores data in a sequential fiber order. These meters also have a built in realtime clock and will log data on preset intervals automatically.