1、3.5inch Touch Screen: The fiber optic tester has a 3.5inch full color HD touch screen with multi touch control, fast and sensitive response, soft light screen and high definition display. 2、Wavelength Isolation Technology: This optical time domain reflectometer adopts wavelength isolation technology, can be tested with light, input voltage is 5V, dynamic range is 20dB, optical interface is SC. 3、Blind Area: The optical time domain reflectometer breakpoint fault finder has an attenuation blind area of 10m, event blind area of less than three meters, sampling point of 8000, and supports input light detection. 4、Autonomous Algorithm Chip: The optical time domain reflectometer is equipped with a self injected algorithm chip with fluent processing speed and red light source power of 10mW. 5、Compact Size: Breakpoint fault finder can be operated with one hand, with all functions to meet the needs of work. Item Type: OTDR Tester Material: ABS Dynamic Range: 20dB Test Range: 100m-80km Wavelength: 1550(±20nm) Optical Interface: SC Battery:Lithium Battery x 1(4800mah)(Shipped With Built In Battery) Pulse Width: 5ns-20μs Measurement Time: 5 seconds to 180 seconds Measurement Mode: Real Time, Average, Auto Fading Blind Zone: 10m Event Blind Area: < three meters Sampling Point: 8000 Input Light Detection: Support Maximum Allowable Power With Light Test:1270nm <10dBm 1310nm <10dBm 1490nm <10dBm 1577nm <10dBm11 Only S5F Models Standard With Intelligent Optical Link Analysis:Yes (Standard On All Models) OPM Power Range: -50-26dBm OPM Response Wavelength: 700nm-1700nm OPM Calibration Wavelength: 850nm,1300nm,1310nm,1490nm1550nm,1625nm OPM Power Uncertainty: ±0.2dB Red Light Source Power:10mW Display: 3.5 Inch Multi Touch Color Screen Data Cable Type: Type C Charging Requirements: Voltage 5V Current 1A Manual Calibration Function: Support LED Flashlight Function: Support Expandable External Storage:U Disk (Temporary Storage) Operating Temperature:0℃-50℃ Storage Temperature:-20℃-70℃ Relative Humidity:<90% 1 x Fiber Optic Tester 1 x Instruction Manual 1 x Lanyard 1 x Data Cable 1 x Storage Bag