keywords:Mini Optical OTDR Certification:CE, FCC, FDA, ISO,SGS US:USB/RS-232 data interface Measurement Time::15 s,30 s,1 min,2 min,3 min Connector Type:FC/PC(Inter changeable SC, ST) light source:650 nm light source, 5 km data storage:1000 test records storage Product name:handheld type sm mm Mini Optical OTDR Fiber Type:SM/MM/OM3 Show More