Feature: 1. Nine Functions: This fiber optic tester has nine functions, such as OTDR, event map, optical power meter, red light source, stabilized light source, light loss test, LED illumination, RJ45 wire measurement, RJ45 wire finding. 2. Automatic Test And Analysis: This fiber optic tester adopts one click test to analyze the data automatically without more operation, which is very convenient and fast. 3. Wide Application: This fiber optic 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. 4. Wide Testing Range: This OTDR can measure a wide range of fiber optic networks, including long distance fiber optic networks and distributed fiber optic sensing networks. 5. Excellent ABS Material: The case of this OTDR optical time domain reflectometer is made of excellent ABS material, which is sturdy and wear resistant, not easy to be damaged, and has a long service life. Specification: Item Type: OTDR Optical Time Domain Reflectometer Model: AUA513U Can be tested with light Connector Model: UPC Optical Power Meter: -50~+26dBm Stabilized Light Source: 1310nm Test Range: 80km 4 Switchable Languages: Chinese, English, Portuguese, Spanish Save Test Data: >100000 Groups ( Shipped With 32GB Memory Card ) Display: 4.3 Inch 800 x 480 Pixel IPS Capacitive LCD Touch Screen Power Supply: Built In 7.4 V 2200mah Lithium Polymer Battery x 2 ( Shipped With Built In Battery ) Power Supply For RJ45 Receiver: Requires 9V6F22 Battery x 1 ( Shipped Without Battery ) VFL Red Light Source Interface (2.5mm Universal SC, FC, ST) OTDR or Stabilized Light Source Interface ( Can be replaced by SC or UPC or FC or UPC ) OPM Optical Power Meter Interface (2.5mm Universal SC, FC, ST) Optical Loss Test: FC or SC Interface, 0-30dB Range. With Line Finding Test Function: Can measure straight through line T568B, cross line T568A. Package List: 1 x Optical Time Domain Reflectometer1 x Manual1 x USB Cable1 x RJ11 Crocodile Clip Cable1 x Power Cord1 x FC Adaptor ( Already installed in the machine )1 x SC Adaptor1 x RJ45 Receiver1 x RJ45 Remote Adapter1 x Storage Bag1 x Backpack Strap1 Pack x Cleaning Swab1 x Earphone1 x RJ45 Test Cable1 x FC LC Adaptor