Appears to be unused  EXFO BRT-320A-03BLC-58 Optical Return Loss Test Set.
 

Condition - unused

Warranty - 30 days

Configuration:

• Wavelength: 1550 ±15 nm
• Fiber Type: Singlemode, 9/125 µm
• Optical Interface: FC/APC
• Measurement Range: 0 to -70 dB