Feature:1. 9 in 1 Design: Can be used as OTDR, event map, optical power meter, red light source, stable light source, light loss test, LED light, RJ45 measuring line, RJ45 line finding.2. Auto Analysis: Automatic testing and analysis with 1 click testing and automatic data analysis, no more complex operations required.3. Smart Testing: Used to evaluate FTTx and access network construction and maintenance, identify fiber optic break points, measure fiber optic cable length, and calculate relative optical power loss.4. Wide in 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.5. Easy Carrying: Comes with a compact size and a light weight as well, the OTDR is very convenient to carry for both indoor and outdoor use.Specification:Item Type: Optical Time Domain ReflectometerModel: AUA513ATesting: Can be tested with lightConnector Model: APCOptical Power Meter: -50dBm ~ 26dBmStable Light Source: 1310nmTest Range: 80kmLanguages: Chinese, English, Portuguese, SpanishTest Data Saving: > 100000 sets, shipped with 32GB memory card. Display: 4.3in 800 x 480 pixel IPS capacitive LCD touch screen. Power supply: Built in 2 X 7.4 V 2200mAh polymer lithium battery. Rj45 Receiver Power Supply: 1 x 9V6F22 battery, shipped without battery. VFL rEd Light Source Interface: 2.5mm universal for SC FC ST. OTDR Stable Light Source Interface: Can be freely replaced with SC UPC, FC UPC. OPM Optical Power Meter Interface: 2.5mm universal for SC FC ST. Light Loss Test: FC SC interface with 0-30dB range. Line Finding and Testing Function: Can test straight line T568B and cross line T568A. .Package List:1 xOptical Time Domain Reflectometer1 x User Manual1 x USB Cable1 x RJ11 Cable with Crocodile Clip1 x Power Cord1 x FC Adapter (on Machine)1 x SC Adapter1 x RJ45 Receiver1 x RJ45 Remote Adapter1 x Storage Bag1 x Strap1 x Cleaning Cotton Swab1 x Headphone1 x RJ45 Test Cable