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Fiber Optic Test and measurement Visual Fault Identifier VFL Used in Fiber Optic

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Fiber Optic Test and measurement Visual Fault Identifier VFL Used in Fiber Optic

Brand Name : FOCABLE
Model Number : Visual Fault Locator VFL650-6S
Certification : RoHS Compliant, ISO Certificate
Place of Origin : China
Payment Terms : Western Union, T/T
Supply Ability : 5000PCS/MONTH
Packaging Details : 1PCS/BOX
Type : Handheld
Wavelength(nm) : 650
Output power : 5mW, 10mW, 20mW, 30mW
Optical Connector : FC
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Fiber Optic Test Equipment Visual Fault Identifier VFL Used in Fiber Optic Cable Testing

General information

The Visual Fault Locator launches 650nm visible laser light into the fiber.

The visual fault locator devices allow tracing and testing fibers for continuity or proper connections and one even is used to optimize splices or pre polished/splice connectors.

Many of the problems in connection of fiber optic networks are related to making proper connections. Since the light used in systems is invisible infrared light (IR) beyond the range of the human eye, one cannot see the system transmitter light. By injecting the light from a visible source, such as a LED, laser or incandescent bulb, one can visually trace the fiber from transmitter to receiver to ensure correct orientation and check continuity besides. The simple instruments that inject visible light are called fiber tracers or visual fault locators.


  1. Maintenance in telecom , CATV
  2. Test Lab of optical fibers
  3. Fiber routing and continuity checking in optical networks.
  4. Other fiber optic measurements


  1. Very simple to use, compact pen-style checker
  2. High quality, durable, drop resistant, metal / rubber body
  3. Eye-safe Class 1 visible laser needs no safety precautions
  4. 2.5 mm universal connector with translucent captive cap
  5. Will not turn on by mistake, or roll off a bench
  6. Continuous or pulsed operation
  7. The smallest pen available with convenient 2 x AA batteries
  8. Also available in convenient Test Kits


  1. Fiber breakage, bending failure location Fault check
  2. OTDR dead zone
  3. End-to-end optical recognition
  4. Mechanical connection point optimization

Technical Specifications



Central wavelength

650nm±10nm (635nm is available on request)

Emitter type


Output power





Laser Range





Optical connector

2.5mm universal connector, for 1.25mm connectors, FC (Male)-LC. (Female) convertor can be provided on request

Operating model

Both CW and Pulse available

Pulse frequency

2Hz to 3Hz/9Hz

Power supply

2AA alkaline batteries


AA alkaline battery

Operating temperature

-20°C to 60°C

Storage temperature

-40°C to 85°C




100g (without battery)

Standard Packages – Pen-type Visual Fault Locator




Main unit, User Manual

Fiber Optic Visual Fault Locator, Optical Fiber Visual Fault Locator, Handheld Fiber Visual Fault Locator, Bench-top Visual Fault Locator

Product Tags:

fiber optic test tools


fiber optic test and measurement

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