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Pen-type Visual Fault Locator (VFL)

Pen-type visual fault locator (VFL) Admin Edit

Min. Order: 1 Piece/Pieces
Payment Terms: L/C, T/T, WU, Money Gram
Place of Origin: Zhejiang, China (Mainland)
Means of Transport: Ocean, Air, Land
Production Capacity: 1000000
Packing: 1 piece / box
Delivery Date: 5 days Brand Name: T&J
Model: JT3105P Wavelengths(nm): 650±10nm
Fiber Model: SM,MM Output Power: 1mw ~20mw
Pulse Frequency: 2~3Hz Emitter Type: FP-LD
Optical Connector: FC/ Universal 2.5mm adaptor Power Supply: 2pcs AA alkaline batteries
Dimension(mm): ¢25x206 Weight without battery (g): 106g

The JT3105 Pentype 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


  • 2.5mm universal connector, for 1.25mm connectors,

  • lFC (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




JT3105 Pen-type Visual Fault Finder

Central Wavelength

650nm±10nm (635nm   can be required on request)

Emitter Type


Output Power

Optional choice for   1mw, 3mw, 5mw,10mw or on actual needs

Optical Connector

2.5mm universal connector

For 1.25mm connectors, FC   (Male)-LC (Female) convertor

can be optional on   customer requests

Operating Model

Both CW and Pulse   available

Pulse Frequency


Power Supply

2  AA alkaline batteries

Battery Operating Time

650nm@1mw ≥65hour

650nm@3mw ≥50hour


Test with Panasonic   LR6 AA ALKALINE battery

Operating Temperature

-10~+45 (℃)

Storage Temperature

-40~+70 (℃)

Dimension (mm)


Weight without   battery (g)


Remark: Colors can be customized on request when meets certain qty!


Standard Packages:



JT3105 P

Main   Unit (Original color), 2pcs Alkaline battery, User Manual, Cotton swabs and   Soft Carrying case.


Picture of JT3105P Pen-stype VFL

Pen-type Visual Fault Locator (VFL)

Colors can be customized when meets certain quantity! 

For example: Original, Gold, Black, Blue. see below picture

JT3105P Pen-type Visual Fault Locator (VFL)

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