Check the listing for details. TL-520C universal interface optical power meter fiber optic attenuation tester. Condition: New. Listed at 23.99 USD. Store CategoriesStore CategoriesFiber Optic CleaverVisual Fault LocatorFiber Optic Power MeterFiber Media ConverterFiber Cable Stripper & CrimperFiber Optic CleanerFiber Optic Tool KitFiber Cutter PenVideo Audio ConverterComputer Cable TesterOther InstrumentCable, Adapter or AccessoriesSwitchesGarden ToolsChildren's ClothingHardware ToolsNew ArrivedKitchen ToolsMake-up ToolsOtherTL-520C universal interface optical power meter fiber optic attenuation tester Product DescriptionFeature: 1. Can experiment at Voice, data and video signal synchronous measurement and display on BPON/EPON/GPON. 2. Provide simultaneous measurement for all 3 wavelength on fiber (1310nm, 1490nm, 1550nm ). 3. Use software to connect with PC, setting the threshold, data transfer, and calibration the wavelength. 4. Offer up to 10 different threshold sets, 3 status LEDs represent different optical signal conditions of Pass, Warn and Fail. Specification: Measurement Range (dBm): -50~+26,If you need -70~+10, please buy it from https://www.ebay.com/itm/183681608730 Calibration Wavelength(nm): 850, 1300, 1310, 1490, 1550, 1625 Interface: Universal 2.5mm(Changeable FC/PC SC/PC) Output power: 10mw Wavelength: 650nm±20nm Sensor Type: InGa As Range: 12 KM@SM Accuracy: 0