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Visual Fault Locator (DT-VFL750-IIII)


Visual Fault Locator (DT-VFL750-IIII) is specially designed for field personnel who need an efficient and economicaltool for fiber tracing, fiber routing and continuity checking in opticalnetworks. It finds breakpoints, poor connections, bending or cracking in fiberoptic cables; and it can find faults in an OTDR dead zone and is used for end-to-end visual fiberidentification.



  2.5mm universal connector,for 1.25mm connectors,

FC(male)-LC(Female)adaptor also can be provided on request

™  Operates either in CW or Pulsed mode with constant

output power

™  Low battery warning

™  Long battery life (up to 60 hours)

™  Drop-resistant and dust-proof design of laser head

  Laser case ground design prevents ESD damage

™  Portable and rugged

™  Easy to use



  Maintenance in telecom, CATV

  Test Lab of optical fibers

  Fiber routing and continuity checking in optical networks

Other fiber opticmeasurements




Visual Fault Locator (DT-VFL750-IIII)

Central wavelength

50nm±10nm  (635nm is available on request)

Emitter  type

FP-LDFabry-Perot laser diode

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


Power supply

2AAA alkaline  batteries

Operating temperature

0°C to 60°C

Storage temperature

40°C to 85°C


13 x 165mm


60g (without  battery)


  Standard Package



Visual Fault Locator (DT-VFL750-IIII)

Main unit, User Manual, Individual packing