Continuity, polarity and fault finding

Fiber optic test equipment, inspection, checking, fault location & troubleshooting craft tools & kits for all networks.


A visual fault locator VFL is used to quickly determine fiber continuity and polarity, or indicate faults.

VFL eye safety & range guidance.

KI 9800A Pocket Fiber Source

  • Economical shirt-pocket size source
  • Options for SM, MM, POF etc
  • Low-skill TamperLock mode
  • MM is EF compliant
  • Eye safe high power VFL 5 mW

KI 6300 Pen Visual Fault Locator

  • Pen-sized universal laser VFL 1mW
  • Eye safe class 1 laser
  • LC / 1.25 mm universal adapter option

KI 2600 Handheld Power Meter

  • Productivity power meter
  • Options for all networks & users
  • Ideal for cable installers
  • Powerful reporting capability
  • Optional VFL

An option for our advanced sources and combined source/meter units, VisiTest integrates a visible laser light pulse in the fiber under test, while performing automated testing. This unique feature saves time in the field, and improves test result confidence. It also has a basic VFL fiber checker mode. It's available for: 

Not sure?

Visually check polarity, continuity, and overall end face condition. 

Simply connect the source, and view the far end with the the included microscope, to observe the repeating color pattern at the far end.

Our unique and innovate MPO Visual Cable Verifier Kit is versatile, inexpensive, and practical.

KI-TK812 12 Fiber MPO/MTP™ Visual Cable Verifier

  • For all MPO-12 connectors
  • Visual cable verifier light source
  • Microscope & cleaning materials
  • Inspect polarity, continuity & end-face

KI-TK824 12 / 24 Fiber MPO/MTP™ Visual Cable Verifier

  • For all MPO-12 / 24 connectors
  • Visual cable verifier light source
  • Microscope & cleaning materials
  • Inspect polarity, continuity & end-face

KI-TK832 32 Fiber MPO/MTP™ Visual Cable Verifier

  • For all MPO-16 / 32 connectors
  • Visual cable verifier light source
  • Microscope & cleaning materials
  • Inspect polarity, continuity & end-face

KI-TK872 72 Fiber MPO/MTP™ Visual Cable Verifier

  • For all MPO-48 / 72 connectors
  • Visual cable verifier light source
  • Microscope & cleaning materials
  • Inspect polarity, continuity & end-face

Cold Clamp

  • Exactly locate long distance underground optical cable faults
  • Creates a non-destructive optical marker
  • Use with OTDR to localize physical fault within 1m
  • Works on live systems

KI 6170 Clip-on fiber identifier

  • Clip-on to check for traffic or test tones
  • Low false detection rate
  • Optical Power display 
  • Requires a light source with tone facility

KI 6170 Clip-on fiber identifier

  • Clip-on to check for traffic or test tones
  • Low false detection rate
  • Optical Power display 
  • Requires a light source with tone facility