Check the listing for details. EXFO FTB-400 & FTB-7300D OTDR UPGRADED!!!. Condition: Used. Listed at 3999.00 USD. Optoelectronics Refurbish is happy to present you with the following device: EXFO FTB-400 & FTB-7300D OTDR. Perfect working condition. OTDR module to be used in the 2 module mainframe that takes 2 batteries or external power source. New batteries and external charger included. USB keyboard and mouse, as well as Toolbox 6 cd and Toolbox desktop CD included. Upgraded OS and extra memory. Including wireless internet access or wireless data transfer, Bluetooth possible too. In case of doubt, or if needed additional assistance, please email us to gmail to OptoElectronicsRefurbish. Consult with us about it, check other items listed. Purchase Orders accepted and mandatory for over 2000$ orders. Payment by ACH/WIRE/CHECK. 5-10% discount for Educational institutions, Government/National labs.