A fiber visual fault locator pen VFL for fiber optic installation, fault finding, continuity checking, polarity checking, verifying a signal path, and identifying a fiber. For single mode, multimode and plastic fibers, this is a low price 1mW fiber laser light tester that complies with the latest visible eye safety standards for fiber laser testers.

  • Easy, compact pen-style laser checker
  • Quality drop-resistant metal & rubber body
  • Class 1 laser light needs no safety precautions
  • 2.5 mm universal connector & translucent captive cap
  • Will not turn on by mistake, or roll off a bench
  • Continuous or pulsed operation
  • The smallest laser pen tracer with 2 x AAA batteries
  • Also available in convenient Test Kits
  • 3 year warranty

MPO-Specific Continuity, Polarity & End Face Tester

More VFL & cable fault finders

1.25 mm to 2.5 mm adpater

OPT 189 1.25 mm to 2.5 mm, LC fiber tester adapter

Prices & Stock

Part Number Description + Application MSRP*
Source, Visual Fault Locator Pen 1.7 dBm, Universal 2.5mm
USD $176.10
In stock
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Key Features

Documentation & Support

In the box

Optional accessories


VFL Adaptor 2.5mm Female to 1.25mm Male OPT189

A popular adaptor so that a VFL pen with 2.5 mm universal connector can be used with an LC connector

USD $115.79

Add to Cart

VFL Adaptor Cord 2.5mm - 1.25mm OPT711

An economical adaptor so that a VFL pen with 2.5 mm universal connector can be used with an LC connector. Content: 1x SC(PC)-LC(PC) SM Simplex Patch Cord; 1x LC-LC Thru Connector

USD $33.99

Add to Cart
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