Feature:1. USB INTERFACE: The optical time domain reflectometer includes analysis software for further data analysis or processing.2. MULTIFUNCTIONAL: OTDR is 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.3. 4.3IN COLOR LCD TOUCHABLE: Support multi touch, smoothly operation, soft light screen, comfortable to view.4. ABS MATERIAL: Made of premium ABS material, this OTDR meter has a strong and sturdy shell, not easy to deform, withstanding different use scenarios.5. WIDE APPLICATION: OTDR is widely used in fields such as telecommunications and power, an ideal tool for repair and maintenance.Specification:Item Type: OTDR Fiber Optic TesterMaterial: ABS Voltage: 100-240VPulse: 20000nsRange: Approx. 100000m / 328084ftAverage Time: 180sLine Finder Auxiliary Battery: AAA x 2 (shipped without battery)Reflector Battery: Lithium battery x 1 (2000mah) (shipped with built-in battery)Memory Card: Shipped with 8g memory cardFiber Type: Single modeWavelength (nm): 1310, 1550Dynamic Range (dB): 26, 24dBEvent Blind Spot (m): 1.5Attenuation Blind Spot (m): 10Distance Measurement Accuracy (m): Soil (1m+sampling interval+0.005%) x Distance)Test Range (km): 0.5, 1, 2, 4, 8, 16, 32, 64, 128, 256Pulse Width (ns): 10, 30, 50, 100, 275, 500, 1000, 5000, 10000Linearity (dB/dB): 0.05Loss Resolution (dB): 0.01Event Threshold (dB): 0.01Maximum Sampling Resolution (m): 0.1Reflection Measurement Accuracy (dB): 5Operating System: For Windows operating systemDisplay Screen Type: 4.3 inch color LCD, touch screen operationData Storage: Greater than 2000 test curvesOptical Interface: FC, UPC (interchangeable SC. ST)Communication Interface: USBBattery Working Time: Greater than or equal to 10 hoursWorking Temperature (): -5 to 50Storage Drift (): -20 to 70Relative Humidity: 0 to 95% without condensation.Package List:1 x OTDR Fiber Optic Tester 1 x Line Finder Auxiliary Unit 1 x Rope 10 x Cleaning Pad 1 x Plug 1 x USB Cable 1 x Storage Bag 1 x Conversion Head