Feature: 1. Versatile Tester: This fiber tester is a multifunctional tool that combines OTDR, event reflection, optical power meter, VFL, stable light source, Ethernet cable distance measurement, Ethernet cable tracing, RJ45 Ethernet cable sequencer. 2. Wide Testing Range: With the ability to test at wavelengths of 1310nm and 1550nm±20nm, this OTDR tester offers a dynamic range of 24dB 22dB and a measurement range from 3 meter to 60km. 3. Convenient Data Analysis: Equipped with a USB data interface and analysis software, this OTDR tester allows for further data analysis and processing. 4. User Friendly Design: Featuring a 3.5 inch color LCD touch screen, this OTDR tester provides a user friendly interface for intuitive operation and efficient testing. 5. Wide Application: This OTDR tester is ideal for evaluating FTTx and access network construction and maintenance, can identify fiber optic break points, measure cable lengths, calculate relative optical power loss. Specification: Item Type: OTDR Tester Material: ABS Plug Voltage: 100-240V Battery: Lithium battery x 1 (4000mAh) (built in) Test Wavelength: 1310nm 1550nm ±20nm Fiber Type: G.652 single mode fiber Dynamic Range: 24dB 22dB Event Blind Spot: 3 meter Attenuation Blind Spot: 8 meter Measurement Range: 3 meter to 60km Pulse Width: 3ns to 10us Distance Measurement Accuracy: ± (1m + sampling interval + 0.005% x Test distance) Linearity: ±0.2dB/dB Sampling Points: 16k to 128k Sampling Resolution: 0.05m to 8m Reflection Accuracy: ±3dB Data Storage: Internal: ≥600 pieces; External: Scalable small memory card (shipped without card) Laser Safety Level: Class II File Format: SOR standard file format Optical Connector: FC UPC (interchangeable SC, ST) Wavelength Range: 800nm to 1700nm Optical Connector: Universal connector FC SC ST Measurement Range: -50dBm to +26dBm Uncertainty: ±5% Frequency Identification: CW 270 330 1k 2kHz Laser Type: FP LD Output Wavelength: 1550nm ±20nm; 1310nm 1550nm ±20nm Output Power: ≥-5dBm Modulation Frequency: 270 330 1k 2kHz Stability: CW, ±0.5dB/15min (tested after preheating for 15min after startup) Working Wavelength: 650nm ±20nm Output Power: ≥10mw Working Mode: CW 1Hz 2Hz Display: 3.5 inch color LCD screen Data Interface: Micro USB Battery Life: Standby time >20 hours; Measurement >12 hours Working Temperature: -10℃ to +50℃ Storage Temperature: -40℃ to +70℃ Relative Humidity: 0-95% without condensation. Package List: 1 x OTDR Tester (Small Memory Card Not Included)1 Pack x Cotton Swab1 x Plug1 x USB Cable1 x Instructions1 x Conversion Head Note: To reduce the risk of fire or electric shock, do not expose the equipment to thunderstorms or damp environments. To prevent electric shock, do not open the casing and repair must be carried out by qualified personnel.