AQ7275 OTDR is a enhanced model of AQ7270, and has improved waveform quarity, increased dymanic renge, wide range of optical functions.

AQ7270 OTDR is a test device used when installing and maintaining optic fiber network in metro (inter-city services), access and FTTH (intra-city networks).

The AQ7260 OTDR covers a wide range of applications for the installation and servicing of optical networks, and features a variety of a OTDR modules and optional units.