Continuity, polarity and fault finding

Continuity, polarity and fault finding for all networks.
KI 6354 Pen Visual Fault Finder
  • Pen-sized universal VFL
  • Eye safe class 1 laser
  • LC / 1.25 mm universal adapter option
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
KI 6170 Clip-on fiber identifier
  • Easily check for traffic or test tones on live fiber
  • Supplied with interchangeable heads for most fiber/cable types
  • Low false detection rate
  • Uses popular 9 volt alkaline battery. Auto turn-off
  • Power display is very useful for finding lossy components
  • Requires a light source with tone facility, 1550 nm for maximum range
Cold Clamp (buried cable fault locator)
  • Use liquid nitrogen to induce a non-destructive optical marker
  • Use with OTDR to localize physical fault within 1m
  • Significantly improve real-world response & labor time
  • Works on live systems

Quickly check MPO / MTP polarity



KI-TK056 SM 9000 - Simple kit

  • For SM fiber
  • Dual light source + power meter
  • Reporting software, manual data entry
KI-TK033 MM - MPO & MTP™ 9000 Si

  • For MPO & other connectors @ 850 nm only
  • Source + meter, microscope & cleaning materials
  • Reporting software, manual data entry
KI-TK054 POF / PCS / HCS 9000 - Simple kit

  • For POF / PCS fiber 
  • Light source + power meter
KI-TK038 SM & MM 9000 - Simple kit

  • For SM MM fiber
  • 2 dual light sources + power meter
  • Reporting software, manual data entry
KI-TK071A SM & MM - MPO & MTP™ 2000 Ge

  • Popular for SM MM fiber, MPO & other connectors
  • Quad source + meter, microscope & cleaning materials
  • Autotest, memory, USB, reporting software
KI-TK052 LAN 9000 - Simple kit

  • For MM fiber
  • Dual light source + power meter
  • Reporting software, manual data entry
KI-TK072 SM & MM 2000 - Contractor kit

  • Popular for SM MM fiber
  • Quad source + meter, microscope & cleaning materials
  • Autotest, memory, USB & reporting software
KI-TK074 SM & MM 2000 - Contractor kit

  • For SM MM fiber
  • Quad light source + power meter
  • Autotest, memory, USB & reporting software
KI-TK072A SM & MM 2000 - Australia contractor

  • For SM MM fiber with 1625 nm
  • 5 wavelength source + meter, microscope & cleaning materials
  • Autotest, memory, USB & reporting software
  • Optimized for Australian test requirements
KI-TK032 MM 9000 - Multimode

  • For MM fiber
  • Dual source + meter, microscope & cleaning materials
  • Reporting software, manual data entry
KI-TK077 SM 2000 - Simple kit

  • For SM fiber
  • Dual light source + power meter
  • Autotest, Memory, USB & reporting software
KI-TK076 SM & MM 2000 - Simple kit

  • For SM MM fiber
  • Quad light source + power meter
  • Autotest, memory, USB & reporting software
KI-TK083 PON On-site - Complete turn-up

  • For FTTH PON service turn-up
  • PON meter, VFL, microscope & cleaning materials
KI-TK022A SM Two-Way

  • For high volume SM fiber
  • Pair Two-Way & ORL testers, microscope & cleaning materials
  • Zero warm up, Autotest, memory, USB & reporting software
KI-TK082 SM & MM 9000 - Transmission

  • For SM MM fiber
  • Meter, microscope, VFL & cleaning materials
  • Reporting software, manual data entry

KI-TK037 SM & MM 9000 - Contractor kit

  • For SM MM fiber 
  • 2 Dual sources + meter, microscope & cleaning materials
  • Reporting software, manual data entry
KI-TK081 SM 2000 + 9000 - Simple kit

  • For SM fiber
  • Dual light source + power meter
  • Autotest, memory, USB & reporting software
KI-TK812 12 Fiber MPO/MTP™ Visual Cable Verifier

  • For SM MM fiber, MPO-12 connectors
  • Visual Cable Verifier Source & microscope
  • Cleaning materials
KI-TK824 12 / 24 Fiber MPO/MTP™ Visual Cable Verifier

  • For SM MM fiber, MPO-12 / 24 connectors
  • Visual Cable Verifier Source, microscope
  • Cleaning materials
KI-TK832 32 Fiber MPO/MTP™ Visual Cable Verifier

  • For SM MM fiber, MPO-16/32 connectors
  • Visual Cable Verifier Source & microscope
  • Cleaning materials
KI-TK872 72 Fiber MPO/MTP™ Visual Cable Verifier

  • For SM MM fiber MPO-48 / 72 connectors
  • Visual Cable Verifier Source & microscope
  • Cleaning materials
KI-TK1010 General - Cleaning & inspection kit

  • For SM MM fiber
  • Microscope & cleaning materials
  • Additional space for other equipment
KI-TK1012 MPO/MTP™ - Cleaning & inspection kit

  • For MPO, LC and SC connectors
  • Microscope & cleaning materials
  • Additional space for other equipment

Integrated VFL

Products with a VFL port, or VisiTest - Combining a blinking visible light with Multi-λ AutoTest.

KI 2600 Handheld Power Meter
  • Professional productivity meters
  • Options for all networks & users
  • Ideal for cable installers
  • Powerful reporting capability
  • Leading accuracy
  • Optional VFL
KI 2700 Handheld Loss Test Set
  • Versatile Loss Test Set
  • SM, MM & POF, EF compliant
  • MPO version
  • Dual, quad up to 6 λ
  • Unique VisiTester VFL option
  • Autotest power meter 1% accuracy
  • Powerful reporting software
KI 2800 Handheld Source
  • Versatile productivity source
  • Options for SM, MM, POF etc
  • SM + MM quad up to 6 λ
  • MM is EF compliant
  • Unique VisiTester VFL
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

The useful operating range of fiber optic visual fault locators is widely misquoted, with ranges of 20, 30, 40 and even 50 Km often incorrectly stated.
This is what they will actually do. There is no magic, it's just a combination of emitted power, attenuation and eye sensitivity, combined with eye safety limits on emitted power when no connector is attached (which is often not quoted at all).

If you are struggling here, consider a different technology that's safe to use.

VFL range under ideal conditions Power level connected Power level disconnected Wavelength "Connector end view" continuity "Break location" in patch lead "Side glow" continuity Comment
KI6354 Pen -4.5 dBm - 1.5 dBm typ 650 nm 8.75 Km 5.75 Km 3.75 Km Small & easy
KI9807 -2 dBm -2 dBm 635 nm1 8.75 Km 5.75 Km 3.75 Km Brighter on short distances
KI2600 Power meter +2 dBm +2 dBm 650 nm 9.8 Km 6.8 Km 4.8 Km Top performance
KI2000 Series VisiTest +2 dBm +2 dBm 650 nm 9.8 Km 6.8 Km 4.8 Km Top performance
Class 1 Legal Limit +3 dBm +3 dBm   10 Km 7 Km 5 Km No precautions needed
KI9808 +7 dBm +7 dBm 650 nm 10.7 Km 7.7 Km 5.7 Km Requires special site precautions
Class 2M Legal Limit +10 dBm +10 dBm   11.2 Km 8.2 Km 6.2 Km Maximum legal power level allowed
Illegal VFL "20Km" +20 mW / 13 dBm Not specified! 650 nm 11.7 Km 8.7 Km 6.7 Km Illegal
Illegal VFL "30Km" +30 mW / 14.8 dBm Not specified! 650 nm 12 Km 9 Km 7 Km Illegal
Illegal VFL "40Km" +40 mW / 16 dBm Not specified! 650 nm 12.2 Km 9.2 Km 7.2 Km Illegal
Illegal VFL "50Km" +50 mW / +17 dBm Not specified! 650 nm 12.4 Km 9.4 Km 7.4 Km Illegal
Source & Clip on Identifier 0 dBm 0 dBm 1550 nm 200 Km 200 Km 200 Km Good long range solution!

Note 1: Attenuation is higher at 635 nm than at 650 nm. In addition to the photopic curve effect, this makes faults look brighter.
These calculations are approximate and variations may be observed in practice, depending on the fiber type, fiber & cable pigments, cable construction, ambient lighting, operator skill etc. 

See also: Application note 24 : How far can a VFL go?, General Optical Safety Standards, 1992 Kingfisher Introduces World's first handheld solid state VFL, FiberSafe Microscope