Feature: 1. [OTDR Fiber Optic Tester] Equipped with functions like fiber optic communication measurement, network cable sequence, optical power meter, stable light source, VFL, RJ11 line finding, etc. 2. [High Performance OPM] Suitable for signal power testing and insertion loss testing of various devices and optoelectronic components. 3. [Accurate Fault Detection] Accurately pinpoints the location of fiber faults while detecting faults in bare fibers, fiber jumpers, and other fiber cables that can expose red light, including those caused by high loss bends. 4. [Clear Test Interface] This OTDR offers a clear and intuitive interface, the loss distribution curve, fiber distance, loss, and attenuation of optical fibers and cables are clear at a glance. 5. [Long Lasting Battery] The fiber optic tester comes with high capacity rechargeable 4000mAh battery, ensuring prolonged usage and dependable performance. Specification: Item Type: OTDR Fiber Optic Tester Material: ABS Center Wavelength: 1310nm 1550nm Applicable Fiber Type: Single mode Minimum Event Blind Spot: 10m (single mode) Dynamic Range: 22 24dB Measurement Range: 0.2, 0.5, 1, 2, 4, 8, 16, 32, 64km Measurement Pulse Width: 3ns, 5ns, 10ns, 30ns, 50ns, 80ns, 160ns, 320ns, 500ns, 1us, 5us, 10us Sampling Point: 64000 Waveform Data Storage Capacity: 500 pieces Refractive Index Setting Range: 1.00000~1.99999 Fiber Optic Cable Correction Factor Range: 0.80000~1.0000 RJ45 Cable Sequence: Test the network cable sequence, use it in conjunction with the pairing machine Optical Power Meter Measurement Range: -50dBm to +26dBm VFL Output Power: >10mW RJ11 Line Finding: RJ11 interface emits electrical signals, use with detector LCD Display: 320x480, 3.5 inch color LCD Interface: MicroUSB, small memory card Power Supply: AC DC Adapter, input voltage range: 100~240V (1.5A), frequency allowed range: 50 60Hz, output: DC 5V 1A Interface Language: Simplified Chinese, English Environmental Adaptability: Storage temperature: -40?? to 70??, relative humidity: 5% to 95%, no condensation Size: Approx. 173x82x36mm/6.81x3.23x1.42in External Storage Type: Small memory card (without) Tester Host Battery: Internal lithium battery 3.7V, 4000mAh x 1 (built in), battery working time: 10 hours (room temperature) Line Finder Battery: 9V 6F22 Battery x 1 (without) . Package List: 1 x OTDR Fiber Optic Tester (Small Memory Card Not Included)2 x Connecting Cable1 x Crocodile Clip1 x Earphone1 x USB Cable1 x Plug6 x Accessories1 x Stripper1 x Line Finder1 x Storage Bag1 x Portable Strap1 x Instruction Manual