... NewORIENTEK TR600 SM OTDR 1310/1550nm, 32/30dB,Integrated VFL, Touch ScreenEqual to EXFO, JDSU, YOKOGAWA- SM 1310/1550nm, ... 32/30dB- Integrated VFL- Touch Screen- Event Dead Zone <2m- USB interface- 1 Year Manufacturer ... 65500traces(1GB SD storage) Display640x480 6.5 inch TFT color LCD (Touch Screen)InterfaceUSB & SDBatteryBuilt-in rechargeable batteryWorking Time>16 hrs ...