Visual Fault Locators  

GAO’s fiber visual fault locators are handheld devices used in the field of fiber optics to locate faults or breaks in optical fiber. GAO’s fiber visual fault locators are used for troubleshooting and maintenance tasks in fiber optic networks. They emit a bright visible laser light into the fiber optic cable, allowing technicians to easily locate faults by visually observing the light leakage or breakage. 

GAO’s fiber visual fault locators are composed of a laser diode, power control, connector adapter, battery, switch/button, indicator lights, housing or enclosure, and output port.

The other common names for visual fault locators are fiber optic fault finders, fiber fault detectors, optical cable fault locators, visual fiber testers, visual cable break detectors, visual fiber break locators, optical fiber break detectors, visual fault detectors, light source fault locators, fiber break pinpointers, fiber fault tracers, cable break testers, visual break locators, fiber break testers, and fiber optic cable fault tracers.

4 – in – 1 Mini Fiber Optic Power Meter with 15mW VFL and Network Tester – GAOTek

SKU: GAOTek-VFL-304
This compact 4-in-1 fiber optic multimeter with 15mW VFL has a network cable tester, and multifunction optical power measurement for accurate single-mode fiber testing.

Circuit Breakpoint Locator with 8km Range and 8-Hour Operation – GAOTek

SKU: GAOTek-VFL-178
Multifunction Optical Power Meter & Visual Fault Locator with 24dB Range, 600 Storage Capacity, and 3.5in LCD for Efficient Testing

Circuit Breakpoint Visual Fault Locator with 8-Hour Battery Life – GAOTek

SKU: GAOTek-VFL-203
Mini OTDR with Visual Fault Locator, 3.5-Inch LCD Screen, 32.8 ft Dead Zone and Portable Design for Accurate Fiber Testing

Compact Fiber Optic OTDR 1310/1550nm 26/24dB Reflectometer – GAOTek

SKU: GAOTek-VFL-135
Compact OTDR with 1310/1550nm wavelengths, 80km test range, touchscreen, and multifunction tools for FTTH/FTTX fiber testing.

Electric Multimeter Visual Fault Locator with 8km Range – GAOTek

SKU: GAOTek-VFL-209
Optical Transceiver with10 Gbps, C-band tuneable, 80 km range. Ideal for high-speed and reliable network communication.

Fault Locator with 65.6ft Depth and Metal Detection Cable – GAOTek

SKU: GAOTek-VFL-177
Efficient visual fault locator with 40mW output, continuous and pulsed modes, and robust design for accurate fiber fault detection.

Fault Locator with 7-inch Display,128k Sampling Points – GAOTek

SKU: GAOTek-VFL-205
Discover advanced optical fiber cable fault detection with our rugged, IP65-rated locator featuring a 7-inch screen and 12-hour battery life.

Fiber Fusion Splicer with 300x Magnification & Core Alignment – GAOTek

SKU: GAOTek-VFL-111
VISIFAULT Visual Fault Locator with Accurate fiber fault detection with 4 km range and rugged, durable design.

Fiber Optic Cable Tester with 36dB Dynamic Range – GAOTek

SKU: GAOTek-VFL-114
Automatic fiber optical fusion splicer with integrated visual fault locator and optical power meter, featuring core alignment and autofocus

Fiber Optic Cable Visual Fault Locator 10mW 10km Red Light – GAOTek

SKU: GAOTek-VFL-121
Fiber Optic Cable Visual Fault Locator 10mW detects breaks up to 10km, supports SC/FC/LC/ST connectors, compact 0.18kg design

Fiber Optic Fault Locator with 60km Range & 2500 Results – GAOTek

SKU: GAOTek-GFL-126
Mini OTDR visual fault locator with 26dB range, 4.3-inch touchscreen, 8G storage, and 8-hour battery for optical fiber testing.

Fiber Optic Mini OTDR NK6000 SM 1310/1550nm Reflectometer – GAOTek

SKU: GAOTek-VFL-129
Compact OTDR with 1310/1550nm wavelengths, 80km test range, touchscreen, and multifunction tools for FTTH/FTTX fiber testing.

Fiber Optic OTDR Tester Optical Time Domain Reflectometer Device – GAOTek

SKU: GAOTek-VFL-124
GAOTek’s Fiber Optic OTDR Tester Optical Time Domain Reflectometer Device  is a portable, multi-functional fiber optic tester for FTTH, FTTB, and FTTx networks.

Fiber Optic OTDR with 3km VFL, Multi-Function Testing Tool – GAOTek

SKU: GAOTek-GFL-125
Automatic fiber optical fusion splicer with visual fault locator, large touch screen, multi-wavelength support, and shockproof design.

Fiber Optic Tester with Visual Fault Locator and 60km Range – GAOTek

SKU: GAOTek-VFL-120
Handheld fiber optic OTDR with 30dB dynamic range, quick 5-second start, 10-hour battery life, and 1000 record storage capacity.

Fiber Optical Identifier for Fast Testing at 35dBm Power Level – GAOTek

SKU: GAOTek-VFL-200
Circuit Breakpoint Visual Fault Locator with 8 km range, 1 m accuracy, 10 µs pulse width, 4-hour charge time, and 8-hour continuous operation.

Fiber Splicing Machine with Touchscreen, and Fast Heating – GAOTek

SKU: GAOTek-VFL-102
Fiber Splicing Machine with VFL+OPM combo, 8s splice, 18s heating, 300x magnification, 0.01-0.04 dB splice loss, 2G or 4G wireless, touchscreen.

Fiber Visual Fault Locator with 7km Range and 1mW Laser – GAOTek

SKU: GAOTek-VFL-105
Fiber Optical Fault Locator with 650 nm laser, 7 km range, detects fiber issues, compact, continuous/flash mode, includes carrying case.

FTTH Fiber Cleaver Power Meter Visual Fault Locator Tool Kit – GAOTek

SKU: GAOTek-VFL-143
A high-quality 15 mW visual fault locator, designed for efficient, accurate fiber installation and maintenance.

FTTH Fiber Optic Tool Kit with Power Meter and Locator – GAOTek

SKU: GAOTek-VFL-128
All-in-one FTTH Fiber Optic Tool Kit for installation, testing & maintenance with OPM, VFL, cleaver, and stripper.

FTTH Fiber Optic Tool Kit with Power Meter and Visual Fault Locator – GAOTek

SKU: GAOTek-VFL-187
All-in-one FTTH Fiber Optic Tool Kit for installation, testing & maintenance with OPM, VFL, cleaver, and stripper.

FTTH Fiber Optic Tool Kit with Visual Fault Locator for Networks – GAOTek

SKU: GAOTek-VFL-144
This versatile FTTH fiber optic tool kit features a cleaver, power meter, and a Visual Fault Locator, designed for efficient splicing, testing, and network maintenance

FTTH Fiber Tool Kit with OTDR, OPM, VFL and Light Source – GAOTek

SKU: GAOTek-VFL-106
FTTH Fiber Tool Kit with OTDR, OPM, VFL, light source, and more for accurate SMF testing and wide measuring range up to 60 km

GAOTek Built-In Visual Fault Locator Function

SKU: GAOTek-VFL-108
GAOTek Built-in Visual Fault Locator Function is the most portable test instrument in the industry.

GAO Tek’s visual fault locators have the following functions: 

  • Fault Detection: Our fiber visual fault locators are to detect faults or breaks in optical fibers. By emitting bright and visible light into the fiber, we enable technicians to visually trace the path of the fiber and identify any faults along its length. The light can be seen escaping from the fiber wherever there is a break, bend, or discontinuity. 
  • Fault Localization: GAO Tek's fiber visual fault locators help in localizing the exact location of a fault in an optical fiber. By observing the light emitted from the fiber, technicians can pinpoint the specific area where the fault exists, allowing for targeted repairs or replacement. 
  • Fiber Continuity Testing: Our fiber visual fault locators are also used to test the continuity of optical fibers. They can verify if a fiber is intact and carrying light from end to end without any interruptions. This is particularly useful during installation or troubleshooting to ensure proper fiber connectivity. 
  • Macroscopic Fault Identification: Our fiber visual fault locators are effective in identifying macroscopic faults in fiber optic cables. They can detect breaks, bends, or severe signal loss caused by damaged connectors, fiber fractures, or other physical issues. This allows technicians to quickly assess the health and integrity of the fiber optic network. 
  • Visual Inspection: GAO Tek's fiber visual fault locators facilitate visual inspection of fiber optic cables, connectors, and splices. Technicians can visually examine the quality of connections, identify loose or faulty connectors, and ensure proper alignment and cleanliness. 

GAO Tek’s fiber visual fault locators are rugged, versatile, and precision measurement instruments. They comply with applicable industry standards such as IEC 60825-1, IEC 61280-4-1, TIA-455, ANSI/TIA-568, ISO/IEC 14763-3, and telcordia GR-326-CORE.   

Our fiber visual fault locators help our customers comply with relevant U.S. government regulations such as: 

  • Food and Drug Administration (FDA) 
  • Occupational Safety and Health Administration (OSHA) 
  • Federal Communications Commission (FCC) 
  • National Institute of Standards and Technology (NIST)
  • Department of Transportation (DOT) 

Our fiber visual fault locators help our clients in complying with relevant Canadian government regulations such as: 

  • Health Canada Regulations 
  • Canadian Standards Association (CSA) Standards 
  • Innovation, Science and Economic Development Canada (ISED) Regulations 
  • Transportation of Dangerous Goods Regulations (TDG) 

Our fiber visual fault locators have the following applications: 

  • Fiber Optic Cable Installation: Our fiber visual fault locators are used during the installation process to verify the continuity and integrity of fiber optic cables.  
  • Fiber Optic Network Maintenance: GAO Tek's fiber visual fault locators are used in network maintenance activities. They can be used to quickly locate and identify faults, such as breaks, bends, or faulty connectors, in fiber optic cables. This helps us in efficient troubleshooting and reduces downtime during maintenance operations. 
  • Fiber Optic Link Identification: Our fiber visual fault locators are used to identify specific fibers within a bundle or a patch panel. By emitting a visible light into the fiber, technicians can visually trace the path of the light and identify the corresponding fiber at the other end. This is particularly useful when dealing with a large number of fibers in complex fiber optic networks. 
  • Fault Detection and Localization: Our fiber visual fault locators are effective tools for detecting and locating faults in fiber optic systems. By emitting a bright and visible light, our fiber visual fault locators enable technicians to visually identify breaks, discontinuities, or other issues in the fiber.  
  • Fiber Optic Connector Verification: GAO’s fiber visual fault locators are used to inspect and verify the quality of fiber optic connectors. Technicians can use our fiber visual fault locators to visually inspect connectors for cleanliness, alignment, and proper mating. The visible light emitted by our fiber visual fault locators helps in identifying any defects or irregularities in the connectors. 

Our fiber visual fault locators can be shipped overnight within the continental U.S. and Canada, and can be shipped globally.