Shenhuo Seiko Nanjing Communication Technology Co., Ltd
Home /

Fiber Test Instruments


Visual Fault Locator

/Pen Shape Visual Fault Locator VFL S205

Pen Shape Visual Fault Locator VFL S205

Equipped with LED lights for easy

Interface: SC, FC, ST, available FC-LC converter

Mini compact, stable light source, LED lighting, automatic shutdown

  • Item NO.:

  • Order(MOQ):

  • Payment:

    T/T, Paypal, Western Union, Moneygram, etc.
  • Product Origin:

  • Color:

  • Shipping Port:

  • Lead Time:

    in 3 Working Days
  • Product Detail


The Pen Shape Visual Fault Locator (VFL) is a robust, cost-effective fiber optical cable test tool for locating faults within OTDR dead zones. As a visual fault identifier (VFI), it can quickly identify faults in fiber optic jumper cables, distribution frames, patch panels, and splice trays. Using bright red laser light of 650nm wavelength, the FVFL-120 locates faults visually by having the light pinpoint the exact location of the fault. With output power up to 10mW, a 20km range of usage and metal housing, the visual fault locator is a versatile and cost-effective tool for fiber evaluation. The 2.5mm universal connector interface mates with many connector styles including SC/FC/ST without needing an adapter.


• Easy identification of fiber break, bend, fiber tracing, and fiber routing
• Small size, easy to field test. High-quality pen-type visual fault locator
• Mates with 2.5mm ferrules including ST, SC, FC
• 650nm visible laser diode can be operated in continuous or pulsed modes
• Mode button cycles between Continuous Wave (CW) and Pulsed (2Hz) modes
• Metal sandblasting with matte paint design, better hand feeling and more durable
• Endcap protects laser unit


Product Series

Visual Fault Locator (VFL)

Optcore Part Number



650nm ± 20nm

Output Power




Laser safety rating

Class III B

Fiber compatibility

Multimode and Singlemode

Operation Mode

Pulsed (2Hz) and Continuous Wave (CW)


2.5mm universal connector, for FC/SC/ST connector



Battery type

2 x AA

Battery Life

≥ 10 hours


Operating: -10°C to 60°C
Storage: -20°C to 70°C


0.16 kg

How to Change the Ceramic Core
Step 1: Open the dust cover, unscrew the red pen metalhead.
Step 2: Remove the broken ceramic casing, and clean up debris and dust (be careful not to damage the core surface). Then tighten the metal head.
Package Included
1 x Visual Fault Locator
1 x Ceramic Tube
1 x Carry Bag
1 x Rope


Leave A Message

If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.
Related Products
Cheap Fiber Optical VFL tester
Economical Portable Visual Fault Locator S203

Fast locate the broken point. Cheap and Quality Vfl Optical Fiber Visual Fault Locator.

Ideal Fiber Fault Locator
Pen Fiber Optic Visual Fault Locator VFL

Rugged and waterproof design. Pocket size and light weight, easy to use.

40mw 30mw Visual Fault Locator VFL
High Power Visual Fault Locator S208

Small size, easy to field test High quality pen type visual fault locator Easy identification of fiber break, bend, you can protect the fiber layer.

Hot Sale Optical Fiber Visual Laser Red Pen
Portable Fiber Optic Visual Fault Locator S209

Long battery life Portable and rugged, easy to use 2.5mm universal connector, for 1.25mm connectors,FC (Male)-LC (Female) convertor can be provided on requests.

Portable Gigabit Ethernet Tester
Handheld Gigabit Ethernet Test Set

Compact and durable, specialized for outdoor field test. User friendly interface, with high resolution colour touch screen. Fast boot up technology. High quality, but reasonable price. Support comprehensive Ethernet test functions from installation and commission to operation and maintenance.

Digital Fiber Optic Talk Set
High flexibility Optical Talk Set S601

Comfortable hand feelings, and nice outside looking. High quality conversation connection and low background noise. The user can easily operate on this optical tester.

Fiber Optical Microscope
Mini Video Optical Fiber Microscope

400 times optical zoom;  LCD video monitor present perfectly clear; High resolution image;

Optical Power Meter And VFL
Mini Optical Multimeter S406

Support simultaneous display of mW/dBm Support automatic shutdown/backlight switch Support wave memory when shutdown 120h working time

Leave A Message
Leave A Message
If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.