The UT695D series handheld mini optical all-in-one machine integrates three functional modules: continuous optical signal power measurement, fiber optic continuity detection, and network cable pair testing. This product is controlled by a low-power single-chip microprocessor, with a beautiful and durable body shape and ergonomic design. In addition, it features IP54 dust and water resistance, a focused flashlight, backlit display, automatic recognition of optical modulation frequency, automatic shutdown, wavelength memory function, user calibration function, and an ultra-wide optical power measurement range.