Feature: 1. MAIN PURPOSES: Used to evaluate FTTx and access network maintenance, identify fiber breakpoints, measure cable lengths, calculate relative optical power loss. 2. INTERFACE AND SLOT: The fiber tester has Micro USB data interface, external small memory card slot, including analysis software for further data analysis or processing. 3. CLEAR DISPLAY: With 1310nm 1550nm dual test wavelengths, wide application range, and a 3.5in color display (non touch) to clearly display the measurement data. 4. 9 FUNCTIONS: OTDR, event reflection, optical power meter, visual fault locator, stable light source, ethernet cable distance, ethernet cable tracking device, RJ45 ethernet cable sequence, LED light. 5. EASY OPERATION: The optical fiber tester has a compact size, easy to hold and operate, and is widely used for fault detection of optical fiber equipment. Specification: Item Type: Optical Fiber Tester Model: AUA900D Material: ABS Connector Model: UPC Dual Wavelength: 1310nm 1550nm Display: 3.5in Display Screen Power Supply: Built in 3.7V 4000mah polymer lithium battery (with built in battery) 9 Functions: OTDR, event mapping, optical power meter, visual fault locator, stable light source, ethernet cable distance, ethernet cable tracking device, RJ45 ethernet cable sequence, LED light . Package List: 1 x Optical Fiber Tester1 x Adapter1 x Charging Cable1 x Plug1 x CD1 x User Manual1 x Storage Bag1 x Storage Bag Belt