Visual fault locator 1

UT-King 650 nm Fiber Visual Fault Locator — Plastic/Metal Handheld Type

The UT-King Fiber Cable Visual Fault Locator (VFL) is a compact optical test tool for detecting fiber breaks, bends, and poor splices. Built with a durable plastic body and 2.5 mm universal connector, it emits a strong red laser (650 nm) for quick visual troubleshooting. Ideal for field technicians and FTTH maintenance teams.

  • Data Sheet
  • User Manual
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Description

The UT-King Fiber Cable Visual Fault Locator (VFL) is a reliable and easy-to-use diagnostic tool for fiber optic testing and troubleshooting. Designed with a durable plastic enclosure for lightweight portability, it allows technicians to visually locate fiber breaks, macrobends, connector faults, and splicing errors within seconds.

Operating at 650 nm visible red light, the VFL can identify faults up to 10 km (depending on model) through jacketed or bare fibers. Its universal 2.5 mm connector interface supports both FC, SC, and ST fiber connectors, making it compatible with most single-mode and multi-mode networks.

The UT-King VFL is powered by standard AAA batteries, featuring continuous and modulated output modes for different testing requirements. Compact, shock-resistant, and simple to operate, it is an essential tool for fiber installation, maintenance, and FTTH network verification.

Application

FTTH / FTTx fiber testing, Fiber break and bend detection, Optical cable inspection, Splice loss location, Field maintenance

Key Features

✔️ 650 nm visible red laser for quick fault location
✔️ 2.5 mm universal connector for FC, SC, ST fibers
✔️ Detects breaks, bends, and poor splices up to 10 km
✔️ Lightweight and durable plastic body for field use
✔️ Continuous and modulated laser modes
✔️ Compatible with single-mode and multi-mode fibers
✔️ Powered by AAA batteries for convenient portability
✔️ Ideal for FTTH, ODN, and data center fiber troubleshooting

Specifications

Specification Details
Brand UT-King
Model / Product Code Visual Fault Locator (Plastic Type)
Body Material Plastic
Wavelength 650 nm ±10 nm
Laser Type Class II / Class IIIa visible red laser
Output Power 1 mW – 10 mW (depending on model)
Detection Range Up to 10 km (typical)
Connector Type 2.5 mm universal (FC / SC / ST compatible)
Fiber Compatibility Single-mode and multi-mode
Output Modes Continuous / Modulated (2 Hz)
Power Supply 2 × AAA batteries
Battery Life Up to 40 hours (continuous use)
Operating Temperature –10 °C ~ +60 °C
Storage Temperature –40 °C ~ +70 °C
Dimensions Compact handheld (varies by output class)
Weight ~80 g (without batteries)
Certifications CE, RoHS
Warranty 1-Year Limited Hardware Warranty
Package Contents 1 × VFL Unit, 2 × AAA Batteries, User Manual

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