Feature: 1. Nine Functions: OTDR, incident map, optical power meter, red light source, stable light source, light loss test, LED lighting, RJ45 line measurement, RJ45 line finding. 2. Automatic Test And Analysis: Optic Fiber OTDR Tester works with one button test to automatically analyze the data. No further operation is required. 3. Large Testing Range: OTDR optical time domain reflectometer can measure a wide range of fiber optic networks, including long distance fiber optic networks and distributed fiber optic sensing networks. 4. Wide Application: This OTDR optical time domain reflectometer is used to evaluate FTTx and access network construction and maintenance, identify fiber breaks, measure optical cable lengths, and calculate relative optical power loss. 5. 4.3inch Touch Screen: This tester has a 4.3inch touch screen. It is very easy and convenient for users to operate directly on the screen by clicking on it. Specification: Item Type: OTDR Optical Time Domain Reflectometer Materials: ABS Model: AUA 501U Connector Type: UPC Single Wavelength: 1550nm Test Range: 80km Four Languages: Chinese, English, Portuguese, Spanish Stored test data: More Than 100000 Groups (Shipped With 32GB Memory Card) Display: 4.3inch IPS Capactive Display Touch Screen Power Supply: Internal 7.4 V , 2200mah Polymer Lithium Battery x 2 (Shipped With Built In Battery) RJ45 Receiver Power Supply: 9V6F22 Battery x 1 ( Shipped Without Battery ) VFL Red Light Source Interface: Approx. 2.5mm/0.1in Universal SC or FC or ST OTDR or Stable Light Source Interface: Replaceable at SC or UPC, FC or UPC OPM Optical Power Meter Interface: Approx. 2.5mm/0.1in Universal SC or FC or ST Light Loss Test: FC or SC Interface Range 0-30dB Line Finding Test Function: Straight Line T568B, Cross Line T568A. Package List: 1 x Reflectometer1 x Manual1 x USB1 x RJ11 Auxiliary Clip Cable1 x Power Cable1 x FC Adapter ( Already Installed On The Machine ) 1 x SC Adapter1 x RJ45 Receiver1 x RJ45 Remote Adapter 1 x Storage Bag1 x Strap1 Pack x Cleaning Swab1 x Earphone1 x RJ45 Test Cable