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* 2.5mm universal connector, for 1.25mm connectors

FC (Male)-LC (Female) convertor can be provided on requests. 

* Operates either in CW or Pulsed

* Constant output power 

* Lower Battery warning

* Long battery life (up to 60 hours)

* Crash-proof and dust-proof design for laser head

* Laser case ground design prevents ESD damage

* Burning testing to ensure the reliability.

* Portable and rugged, easy to use

* Guarantee to CE standards include EMC, EMI, ROHS


Pen-type Visual Fault Locator (VFL)



- Maintenance in Telecom

- Maintenance CATV

- Fiber Optic Lab Testing

- Other Fiber Optic Measurements

The JW3105 Pen type VFL is specially designed for field personnel who need an efficient and economical tool for fiber tracing, fiber routing and continuity checking in optical network. It includes:
Finding the breakpoint, poor connections, bending or cracking in fiber optic cables.
Finding the faults of OTDR dead zone
End-to-end visual fiber identification


Main Unit (Original color), 

2pcs Alkaline battery, 

User Manual, 

and Soft Carrying case

Standard Packages
JW3105A pen-type Visual Fault Locator
Central Wavelength650nm±10nm (635nm can be required on request)
Emitter TypeFP-LD
Output Power Optional choice for 1mw, 10mw on actual needs
Optical Connector2.5mm universal connectorFor 1.25mm connectors, FC (Male)-LC (Female) convertor can be optional on customer requests
Operating ModelBoth CW and Pulse available
Pulse Frequency2~3Hz
Power Supply 2 AA alkaline batteries
Battery Operating Time 

650nm@1mw ≥65hour


Test with Panasonic LR6 AA ALKALINE battery

Operating Temperature-10~+45 (℃)
Storage Temperature-40~+70 (℃)
Dimension (mm)¢15*180
Weight120g(Without battery) 
Remark: Colors can be customized on request when meets certain qty!