1、Useful Tester: Used to evaluate FTTx, access network construction and maintenance, can also identify optical fiber breakpoints, measure optical cable length, and calculate relative optical power loss. 2、Better Design: Comes with 3.97in touch screen to largely facilitate the operation, while the USB date interface enables easier further processing on data and analysis, very convenient and efficient. 3、Reliable Work: With visual fault locator and optical power meter are included in the set as well, the OTDR meter ensures a long measurement range of 0-60km, very high in accuracy and reliability. 4、Practical Use: Allows for wide application in testing Ethernet cable distance, rj45 Ethernet cable sequence, LED light and so on, the optical tester will surely satisfy your various working needs. 5、Easy Carrying: Light in weight and compact in size as well, the optic fiber tester is very simple to carry for both indoor and outdoor works. Item Type: Optical Time Domain Reflectometer Model: AUA28U Joint Type: UPC OPM: -70 ~ +10dBm Material: ABS Wavelength: 1550nm (20dB) Dynamic Range: 20dB Measuring Distance: Approx. 0 ~ 60000m / 0 ~ 196850.39ft Fiber Optic Connector Type: 9/125 μ m SM Unit: Meter, inch, mile. Reflection Blind Area: Approx. 2m / 6.56ft Data Storage: 200 Groups Display: 3.97in. Resolution: 800 x 480pixels IPS touch screen. Power Supply: 7.4V 4400mAh lithium ion battery, shipped with built in battery. Can be used for more than 5000 times. Visual Fault Locator: Wavelength: 650nm Output Power:>=10mW Mode: CW, 1Hz, 2Hz Optical Fiber Type: SM, MM Optical Power Meter: Measuring Range: -70 ~ +10dBm Wavelength Range: 800-1650nm Calibration Wavelength: 850nm, 1300nm, 1310nm, 1490nm, 1550nm, 1625nm. Detection Type: InGaAs 1 x Optical Time Domain Reflectometer 3 x User Manual 1 x Cleaning Swab Pack 1 x CD 1 x Lanyard 1 x SC Connector 1 x FC Connector 1 x USB Cable 1 x Power Cord 1 x Storage Bag 1 x FC LC Adapter