500 groups of data storage for saving and viewing at any time, with 500 sets of cyclic coverage Ten wavelengths supported: 850 nm, 980 nm, 1270 nm, 1300 nm, 1310 nm, 1490 nm, 1550 nm, 1577 nm, 1625 nm, 1650 nm Automatic shutdown function in standby mode; automatically shuts down after 10 minutes to save electricity 2.5 mm universal interface; wide application range; supports SC, FC, and ST three common optical fiber connectors Use scenarios Laboratory data logging and analysis: store measurement data across multiple wavelengths, with easy retrieval and viewing for experiments or testing procedures. Field fiber installation and maintenance: connect to equipment using SC/FC/ST connectors, log results with the builtin storage, and operate efficiently with automatic shutdown to conserve power. Production testing and quality control: perform multiwavelength assessments, keep organized records in 500 data groups, and rely on the universal interface to fit common fiber layouts.