产品名称：HP8145A OTDR
  HP/Agilent 8145A Optical Time Domain Reflectometer. For field maintenance and bench applications; Unique data correlation technique increases the dynamic range to more than 28dB at 1300nm (26dB at 1550nm, regardless, whether the 1300nm module is installed) single-mode and drastically reduces the measurement time; Easy-to-learn softkey-guided menu concept; Rugged and light-weight; HPIB; Call for configuration.

 hp-8145a-info.pdf