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Economical Visable Fault Locator (VFL)

Economical Visable 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: JT3105N Wavelengths(nm): 650±10nm
Fiber Model: SM,MM Output Power: 1mw / 10mw
Optical Connector: FC/ Universal 2.5mm adaptor Power Supply: 2pcs AA alkaline batteries
Battery Operating Time: 40 hours Dimension(mm): 100x30x18mm
Weight without battery (g): 37 Operating Temperature: -10 ~ ti60 (℃)

The JT3105N Economical VFL is an efficient and low cost basic fiber test tool, it provides a visible way to find fiber faults and identify fibers in an optical network during and after installation. 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

Key Features

  • Constant & stable output power

  • Special laser driver circuit design, to make sure the laser output power remains a constant power level as long as in an available battery voltage.

  • Low battery warning, reminds users to change the battery timely.

  • Long battery life(up to 40 hours with AAA batteries)

  • Operates either in CW or Pulsed

  • Pocket size and light weight, easy to use



New Part No.: TJ04A1102


JT3105N Economical VFL

Central Wavelength


Emitter Type


Output Power

1mw or 10mw

Optical Connector

FC/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(2Hz) available

Power Supply

Two AAA alkaline batteries

Battery Operating Time


Test with Panasonic LR6 AAA  ALKALINE battery

Operating Temperature

-10~ti60 (℃)

Storage Temperature

-25~ti70 (℃)

Dimension (mm)





Standard Packages




JT3105N VFL, Two AAA batteries, User Manual, Cotton swabs and Soft Carrying case.


Pictures of Economical Visable Fault Locator

Economical Visable Fault Locator (VFL)

Economical Visable Fault Locator (VFL)

The JT3105N Economical VFL packing:

JT3105N VFL (Economical Visable Fault Locator)

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