Fiber optic visual fault locator adopts 650nm laser diode as a
light emitting device,the output power can be up to 1mw-30mw. It’s
applied to single-mode or multi-mode fiber measurements.It uses
2pcs of 1.5v AA battery for power supply and FC adapter as an
output interface.In the meantime, you can use SC / ST adapter and
do not need to configure the conversion interface furthermore, it
can optionally connect all frequently-used joint.HY-20 fiber optic
visual fault locator is an ideal tool to test various types of
optic fiber patch cord, ribbon, bundle fiber optic pigtail and
maintain a variety of fiber optic lines for you.