Mr Henry Thai
    Kocent Optec Limited is our long-term partner. In 8 years of co-operation times we together win many projects. Their fast connector and FTTH drop cable quality are best. Their products are cover my country now.
    Mr Pablo
    I was surprised when i made first order with Kocent Optec Limited in 2014. One container 40GP of GYXTW cable and one container 20GP for fast connector, patch cord and adapter. They finished this order in 2 weeks only. Now we also purchase many type of FDB box and Splice Closure Box from them. Hope we will be stronger and stronger in telecom field.
Contact Person : David He
Phone Number : 86-13410896018
Whatsapp : +8613410896018

VFL Pen Type Visual Fault Locator Fiber Optic Cable Tester Red Laser Pen

Place of Origin China
Brand Name KCO, Kocent Optec Limited
Certification ISO9001
Model Number KCO-VFL
Minimum Order Quantity Negotiation
Price Negotiation
Packaging Details paper bag, carton box
Delivery Time 2~5 days after get payment
Payment Terms T/T, Western Union, L/C
Supply Ability 200,000 pcs/ month

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Whatsapp:0086 18588475571

Wechat: 0086 18588475571

Skype: sales10@aixton.com

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Product Details
P/N KCO-VFL Testing Length 3~50km
Output Power 5~50mW Testing Fiber Single Mode SM, Multimode MM
Weight 160g Size 24x170mm
High Light

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Product Description

VFL Pen Type Visual Fault Locator Fiber Optic Cable Tester Red Laser Pen



The handheld visual fault locator is specially designed for field personnel who need an efficient and conomical tool for fiber tracing, fiber routing and continuity checking in an optical network during and after installation.

- 2.5mm universal connector
- Operates either in CW or Pulsed
- Constant output power
- Lower Battery warning
- Long battery life (up to 60 hours)
- Crash-proof and dust-proof design for laser head
- Laser case ground design prevents ESD damage
- Portable and rugged, easy to use
- Guarantee to CE standards include EMC, EMI, ROHS



- Test Lab of optical fibers

- Maintenance in Telecom
- Maintenance CATV
- Other Fiber Optic Measurements

nsert the fiber into VFL through Fiber Connector. It can be used as reference of the multi- core cable
- End to end fiber identification
- Identify the breaks and micro-bend of the pigtail/fiber
- OTDR dead zone fault locator: check the fiber fault point which OTDR can’t find (breakpoint, the beginning and the end of the fiber properties, and also the high loss section due to the microbending, for example: fiber optic patch cords, pigtails, the optical fiber core wire in junction box or bare fibe, etc
- Identify the certain distance of fiber according to the power. Such as 10mw pen style VFL can check the distance up to 20km
- Operation


Cost effective:

The Pen type VFL's extremely high efficiency guarantees prolonged operation with two standard AA alkaline batteries, typically providing 50 hours of uninterrupted operation. Priced to accommodate the tightest budgets, the KCO-VFL-x Pocket Pal is a truly affordable way to locate faults in OTDR dead zones. Its effectiveness justifies purchasing one for just about every fiber technician.
We adopt the new technology for AL composite material make the PEN more light. And use import Mitsubishi LD Laser, make the lights signal more gathered and less attenuation


Product pictures:

VFL Pen Type Visual Fault Locator Fiber Optic Cable Tester Red Laser Pen 0

VFL Pen Type Visual Fault Locator Fiber Optic Cable Tester Red Laser Pen 1

Working picture:

VFL Pen Type Visual Fault Locator Fiber Optic Cable Tester Red Laser Pen 2



Emitter Type
Output Power
5mW, 10mW, 20mW or other power at request
5km, 10km, 20km or other distance on demand
Fiber Type
Test Interface
2.5mm universal connector FC/SC/ST
Working Temp.(℃)
-20~+60 (non-condensing)
Storage Temp.(℃)
Weight (g)
Dimension (mm)
Material Aluminum alloy
Color Silver, golden, black





Corresponding table:

P/N Output Power Testing length
KCO-VFL-5 5mW 3km~5km
KCO-VFL-10 10mW 10km
KCO-VFL-15 15mW 15km
KCO-VFL-20 20mW 20km
KCO-VFL-30 30mW 30km
KCO-VFL-40 40mW 40km
KCO-VFL-50 50mW 50km



VFL Pen Type Visual Fault Locator Fiber Optic Cable Tester Red Laser Pen 3

OEM/ ODM service: 

If you want to print your own brand LOGO on the pen lable or package, it is no any problem. Our OEM service is always ready for you. Please call us or send e-mail to us with your detail inquiry to get more informations.