QIIRUN TM570 Optical Power Meter with Visual Fault Locator Powered by Rechargeable Battery 3 in 1 Fiber Optic Fibre Tester RJ45 Cable Tracker

3 in 1 Mini Fibre Optic Power Meter -- with Optical Power Meter OPM (-70~+10 dBm), Visual Fault Locator VFL (10-15km range) and RJ45 network testing functions, no need to bring separate testers, more convenient and efficient for your field work. This fiber optic tester has wide testing range (10 wavelengths), with embedded strong red-light. Its high accuracy and linearity features make this fiber tester suitable for continuous optical signal power measurement, optical fiber link loss testing and optical fiber line on-off testing. Powered by 3.7v / 700mAh rechargeable battery, you don’t need to replace battery and can save cost. Auto off and flash lighting functions further ensures longer working hour and standby time Other features of this Optical Power Meter and VFL tester -- compact shape, automatic shutdown function, backlight display, wavelength memory function, supports user-self calibration and flash lighting. This handheld mini Optical Power Meter has Universal 2.5mm interface, supports FC, ST and SC connectors.