FLS-140 Visual Fault Locator (VFL)
The FLS-140 is a highly efficient pocket-sized visual fault locator designed to identify fiber faults, locate polished connector endfaces, and pinpoint breaks, bends, and faulty connectors in fiber optic cables. It is lightweight, durable, and ideal for fiber-testing technicians.
Specification Snapshot
Wavelength (nm) (typical)
650to660
Request a Quote
Download Datasheet
Chat
Overview
The FLS-140 is a highly efficient pocket-sized visual fault locator designed to identify fiber faults, locate polished connector endfaces, and pinpoint breaks, bends, and faulty connectors in fiber optic cables. It is lightweight, durable, and ideal for fiber-testing technicians.
Specifications
| Parameter | Value |
|---|---|
| Operation (Hz) | 2to3 |
| Wavelength (nm) (typical) | 650to660 |
| Emitter type | Laser |
| Power output* (typical) (mW) | 0.6 |
| Maximum power output* (mW) | <1 |
| Distance range* (typical) (km) | 5 |
| Operation Mode | Pulsed and CW |
| Power supply | 2AAAalkalinebatteries |
| Laser class | 2M |
| Battery life* (h) Pulsed | 40 |
| Length | 157mm(63/16in) |
| Maximum diameter | 12mm(1/2in) |
| Weight (with batteries) | 70g(2.5oz) |
| Temperature | -10°Cto45°C(14°Fto113°F) |
| Storage | -30°Cto60°C(-22°Fto140°F) |
Applications
1. Identifying fiber faults from end to end 2. Locating polished connector endfaces 3. Pinpointing breaks, bends, and faulty connectors 4. Detecting faults in OTDR dead zones 5. Ensuring end-to-end fiber identification in multifiber cables
Key Features
1. Bright red laser at 655 nm 2. Pulsed and CW operation 3. 40 hours of operation (typical) 4. Standard AAA alkaline batteries 5. Pocket-size pen-style design 6. 2.5 mm universal connector
Datasheet
Product Datasheet
PDF
Supplier Information
<p>EXFO develops smarter test, monitoring and analytics solutions for the global communications industry. As a trusted advisor, we serve fixed and mobile network operators, hyperscale data centers, and leaders in production and R&D. We provide insights into superior network performance, service reliability, and user experience. Backed by 40 years of innovation, EXFO uniquely combines equipment, software and services to enable customers to upgrade 5G, cloud-native and fiber networks faster and more reliably.</p>
Contact Us
Loading...
GetExperimental Plan
Name
Phone
+86
Organization
Use Case

Global Photonics Products
Database Platform
Database Platform
With 16 years of experience, we provide high-quality products and services to universities, research institutes, and industry.
50+ Detailed Categories · 3,000+ Global Brands · 100,000+ Photonics Products
1 Million+
In-depth analysis of professional academic resources in photonics
300,000
ProductsDatasheets Available Free
We will keep your personal information strictly confidential.
Product Quote
+86
* Select the quoting party:
By submitting, you agree to the User Service Agreement and Privacy Policy