Feature: 1. Six Functions: This OTDR fiber tester can be used as an optical time domain reflectometer, optical power meter, stabilized light source, visual fault locator, LED light and event map. 2. 3.5 Inch Color Touch Display Screen: This OTDR fiber tester features a 3.5 inch color display which is very clear and can be touched for operation. 3. Small And Portable: This OTDR fiber optic tester is small in size and light in weight, which is very convenient to carry around and use. 4. Wide Application: This OTDR fiber tester has a wide range of applications for evaluating FTTx and access network construction and maintenance, identifying fiber breaks, measuring cable lengths, and calculating relative optical power loss. 5. Excellent ABS Material: The shell of this OTDR fiber optic tester is made of ABS material, which is sturdy and wear resistant, not easy to be damaged, and has a long service life. Specification: Item Type: OTDR Fiber Tester Model: AUA 16A Material: ABS Connector Type: SC or APC Stabilized Light Source: 1550nm OTDR: 0-80km Optical Power Meter: 8 Wavelengths 850, 980, 1300, 1310, 1490, 1550, 1625, 1650 Red Light: 10km LED Illumination Dustproof Interface: SC Interface for OTDR, 2.5mm Interface for OPM or PFL Display: 3.5 Inch Touch Screen Display Power supply: Built In 3.7V 2200mah Polymer Battery (Ships With Built In Battery) Six Functions: Optical Time Domain Reflectometer, Optical Power Meter, Stabilized Light Source, Visual Fault Location, LED Lights, Event Map. Package List: 1 x OTDR Fiber Tester1 x Manual1 x Charging Head1 x Charging Cable1 x CD 1 x Storage Bag1 x FC LC Adapter