Feature: 1. Wide Usage: This tester is used to evaluate FTTx and access net work construction and maintenance, identify fiber breakpoints, measure fiber cable lengths, calculate relative optical power loss. 2. Double Wavelength: Mini OTDR test wavelength is 1310nm and 1550nm, the test range is from 5m to 100km, and the dynamic range is 26dB 24dB. 3. Multi Interface: The VFL red light source and OPM optical power meter interface can be used for SC and FC ST, the OTDR stable light source interface can be changed to SC or UPC, FC or UPC at will. 4. With 4.3in Touch Screen: The meter is equipped with a 4.3in touch screen, which is more convenient for operation. 5. ABS Shell: This meter is made of excellent ABS material, which has high strength, great flame retardant, stable and durable. Specification: Item Type: Optical Time Domain Reflectometer Material: ABS Model: AUA800U Connector Model: UPC Wavelength: 1310nm 1550nm Test Range: 5m to 100km Display: 4.3 inch touch screen Power Supply: Built in 3.7V 4000mah polymer lithium battery (built in) Power Supply for rj45 Receiver: 2 x AAA battery (not included) Interface: VFL red light source interface (2.5mm universal SC FC ST) OTDR or stable light source interface (can be changed to SC UPC, FC UPC at will) OPM optical power meter interface (2.5mm universal SC FC ST). Package List: 1 x Optical Time Domain Reflectometer1 x Manual1 x Charging Cable1 x Adapter1 x SC Adapter1 x RJ45 Receiver1 x Storage Bag1 x Strap Note: 1. The splitter cannot be tested, if the splitter is tested, the dynamic needs to be greater than 42dB. 2. Before the test or the test results are inaccurate, please use alcohol cotton to clean the fiber optic connector.