FRL-20 series optical insertion loss/return loss tester is a high-performance, integrated and intelligent tester for optical fiber network, fiber cable and component manufacturing and laboratory use.

It supports 1310nm and 1550nm wavelength

FRL-30 series optical insertion loss/return loss tester is a high-performance, integrated and intelligent tester for optical fiber network, fiber cable and component manufacturing and laboratory use. Not only can it measure the return loss and determine absolute and relative power value, but also work as a self-testing system measuring optical loss of optical fiber cables and passive devices.