20mW Visual Fault Locator | High-Power Pen-Type VFL Fiber Optic Fault Finder

20mW Visual Fault Locator – High-Power Pen-Type VFL Fiber Optic Fault Finder

The 20mW visual fault locator (VFL) is a high-power, pen-type fiber optic fault finder designed for professionals who need maximum detection range and laser visibility. With a powerful 20mW 650nm red laser, this VFL can detect fiber breaks, bends, bad splices, and faulty connectors at distances up to 20km — making it the go-to choice for long-haul fiber testing, telecom infrastructure work, and demanding field environments.

When a standard 5mW or 10mW VFL isn't enough, the 20mW delivers the power you need to trace faults on longer fiber runs and through higher-loss paths.

🔧 Key Features

• 20mW High Output Power – Maximum laser power for fault detection up to 20km
• 650nm Red Laser – Bright, clearly visible through fiber jacket for easy fault location
• Pen-Type Design – Compact and lightweight for everyday field carry
• CW & Pulse Modes – Continuous wave and pulse modes for versatile testing
• Universal 2.5mm Connector – Compatible with SC, FC, and ST fiber connectors
• Long Battery Life – Reliable power for extended field use

📋 Technical Specifications

🏗️ Applications

• Long-haul fiber optic break and bend detection (up to 20km)
• Telecom and ISP fiber infrastructure fault location
• Connector and splice quality verification
• FTTH / FTTB fiber drop cable testing
• Fiber continuity verification on long fiber runs
• Network maintenance and troubleshooting

📦 Package Contents

• 1× 20mW Visual Fault Locator
• 1× 2.5mm Universal Adapter
• 1× Battery
• 1× Carrying Pouch

❓ Frequently Asked Questions

Q: When should I choose a 20mW VFL over a 5mW or 10mW model?
A: Choose the 20mW VFL when you need to detect faults on longer fiber runs (up to 20km), or when working through higher-loss paths where a lower-power VFL may not produce a visible signal. For standard FTTH drop cable work (under 5km), a 5mW or 10mW VFL is usually sufficient.

Q: Is the 20mW VFL compatible with LC connectors?
A: The 20mW VFL uses a 2.5mm universal interface (SC, FC, ST). For LC connectors (1.25mm), a 1.25mm adapter is required (available separately).

Q: Is the 20mW laser safe?
A: Never look directly into the fiber end or connector while the VFL is active. The 20mW laser is a Class 3B laser product and can cause serious eye injury. Always follow standard fiber optic laser safety precautions.

Order the 20mW VFL today and get worldwide shipping, competitive pricing, and expert support from our fiber optic specialists.