Style: common Size: US Plug 100240V Model: AUA513U Product overview The AUA513U OTDR is a compact, multifunction fiber optic tester designed for technicians who install, verify, and maintain fiber networks. It combines nine test functions into a single handheld unit and provides automatic test and analysis to save time on site. Rugged ABS housing, a clear capacitive touchscreen, and long battery life make this unit suitable for field use on access networks, FTTx deployments, data centers, and longhaul fiber runs. Key benefits Allinone testing: Nine builtin functions reduce the need to carry multiple tools. Functions include OTDR, event map, optical power meter, red light source (VFL), stabilized light source, light loss test, LED illumination, RJ45 wire measurement, and RJ45 wire finding. Faster troubleshooting: Oneclick automatic testing and analysis deliver organized results without complex configuration, speeding up fault location and reporting. Wide range and capacity: OTDR test range up to 80 km and an optical power meter range from 50 to +26 dBm support both short and long fiber spans. Internal storage holds more than 100000 test records; a 32 GB memory card is included. Fieldready design: Durable ABS enclosure resists wear and impact. A 4.3 inch 800 x 480 IPS capacitive touchscreen provides clear visibility in varied lighting conditions. Flexible connectivity: Interchangeable test interfaces and universal 2.5 mm adaptors support SC, FC, ST, and UPC connectors for broad compatibility with common fiber systems. Important specifications Item type: OTDR Optical Time Domain Reflectometer Model: AUA513U Test range: 80 km Optical power meter range: 50 to +26 dBm Stabilized light source wavelength: 1310 nm Display: 4.3 inch 800 x 480 IPS capacitive LCD touchscreen Stored test data: greater than 100000 groups (32 GB memory card included) Languages: Chinese, English, Portuguese, Spanish Power: Builtin 7.4 V 2200 mAh lithium battery x 2 (supplied) RJ45 power supply: requires 9V6F22 battery x 1 (not supplied) VFL red light source interface: 2.5 mm universal for SC, FC, ST OTDR or stabilized light source interface: can be fitted with SC, UPC, or FC OPM interface: 2.5 mm universal for SC, FC, ST Optical loss test: FC or SC interface, 0 to 30 dB range Line finding test: supports straight through T568B and crossover T568A wiring What the unit does OTDR and event map produce distance, loss, and reflection information to locate splices, breaks, and connectors. Optical power meter measures absolute power levels across a wide dBm range to verify link budgets. Stabilized light source at 1310 nm and light loss test support insertion loss and endtoend attenuation checks. Visual fault locator (VFL) uses a red light source for quick identification of breaks, bends, and misalignments in short links. RJ45 wire measurement and line finding help test and identify Ethernet cabling and wiring configurations. LED illumination assists in inspection tasks and improves visibility during connector cleaning or connectorization. Durability and usability Tough ABS housing protects the instrument during routine field work. Large capacitive touch display and multilingual menu make operation intuitive for technicians with different language preferences. Long battery life with two supplied lithium cells supports extended field sessions. Optional external battery required for RJ45 power tests. Typical use scenarios 1) FTTx deployment and acceptance: Use OTDR traces and loss tests to verify fiber segments, confirm splice quality, and record test data for client handover. 2) Field troubleshooting for service outages: Quickly locate fiber breaks or loss events with the OTDR and confirm continuity with the VFL. Use the optical power meter to verify signal levels at distribution points. 3) Data center and enterprise cabling maintenance: Test fiber runs between racks, identify faulty connectors or patch panel ports, and use RJ45 wire finding to trace Ethernet lines during rework. Package contents 1 x Optical Time Domain Reflectometer (AUA513U) 1 x Manual 1 x USB cable 1 x RJ11 crocodile clamp/holder cable 1 x Power cord (US plug 100240V) 1 x FC adaptor (installed) 1 x SC adaptor 1 x RJ45 plug 1 x RJ45 remote adapter 1 x Storage bag 1 x Backpack strap 1 pack x cleaning swab 1 x earphone 1 x RJ45 test cable 1 x FC to LC adaptor Why choose this tester The AUA513U combines multiple fiber test tools into a single, portable unit that simplifies field workflows. Automatic test and analysis, broad test range, and universal connector support reduce test time and increase compatibility across common fiber installations. The unit is optimized for fiber deployment, maintenance, and troubleshooting tasks where reliable, repeatable measurements are required.