10 mW Fibre Visual Fault Locator, 2.5 mm & FC–LC Option

Identify a disconnected fibre or inspect visible leakage while maintaining a fibre link. This 10 mW visual fault locator uses a 2.5 mm interface for suitable SC, FC and ST connections. It is for fibre technicians who need a portable visual check, with an optional FC–LC adapter.

• ✅ Trace the fibre you are working on — Visible red light provides a continuity reference at the accessible end.
• ✅ Inspect a suspected damaged section — Escaping light may reveal an accessible break or sharp bend.
• ✅ Choose a suitable viewing pattern — Continuous and pulsed modes change how the red output appears.
• ✅ Pack for different connector jobs — The FC-LC option adds an adapter for a suitable LC connection.
• ✅ Move between work points easily — The pen body and illustrated lanyard keep the tool portable.

A portable visual test for accessible fibre links

Use the 2.5 mm universal interface with appropriate SC, FC or ST ferrules, or choose 10MW with FC-LC for the additional adapter. The plain 10MW version does not include that adapter. Connector fit and the fibre's condition should be checked before testing.

The red output provides a visual indication rather than an optical power-loss measurement or the distance to a fault. Jacket construction, fibre attenuation and access affect what is visible, so a stated kilometre figure is not a guaranteed working range.

The locator requires two AA alkaline batteries, which are not included. One selected tester is supplied, with a lanyard illustrated; a carrying pouch is not confirmed in this package. Treat the device as a laser test instrument: never view the output or connected fibre end directly or aim at eyes. Follow the laser label and the applicable fibre-testing procedure.

The 2.5 mm interface accepts suitable ferrules; the fibre lead is an example.

Check connector compatibility and choose the adapter package where needed.

The switch provides continuous output, off and pulsed output.

The FC-LC adapter is only included with 10MW with FC-LC.

The battery compartment takes two AA alkaline cells, sold separately.

A lanyard is illustrated for carrying between work points.

Technical details

• Product: pen-type fibre visual fault locator
• Stated output: 10 mW
• Wavelength stated: 650 nm ±10 nm
• Emitter stated: FP-LD
• Modes: continuous and pulsed
• Pulse frequency stated: 2–3 Hz
• Connector: 2.5 mm universal interface for suitable ST, SC and FC ferrules
• Options: 10MW or 10MW with FC-LC adapter
• Power: 2 AA alkaline batteries, not included
• Dimensions stated: approximately 175 × 26 × 26 mm; package includes 1 selected locator

Choose the adapter option that matches your fibre connectors and keep a visual check tool in your installation kit.

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