1、Support SC and FC interfaces, simultaneous display of linear (mW) and nonlinear indicators (dB), background light on/off, user self‑calibration, wavelength memory function and other functions. 2、Optical power detector is controlled by a single‑chip microprocessor with complete functions, and it also uses built‑in detectors and lasers, which means they can be protected well in it. 3、The design of the fuselage conforms to the requirements of ergonomics, adopts advanced cold plastic molding technology, beautiful and durable, you can use it for a long time. 4、The optical power meter has a compact shape, easy to carry, can be automatically shut down, can be manually calibrated, fiber optic work identification, and a wide test range. 5、The cable tester is widely used in optical cable construction and maintenance, optical fiber communication, optical fiber sensing, optical CATV and other fields. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.