Product Description
• Bright 650nm red laser output
• Available in 1mW, 10mW, 20mW and 30mW models
• Continuous (CW) and pulsed (2Hz) operation
• Universal 2.5mm connector for FC, SC and ST
• Optional 1.25mm adapter for LC connectors
• Pocket-size lightweight pen design
• Up to 30 hours continuous operation (1mW version)
• Powered by two AA batteries
• Supports single-mode and multimode fibers
• Quickly detects fiber breaks, bends and damaged connectors
• Ideal for FTTH installation and fiber optic maintenance










KFL-11P Pen Type Visual Fault Locator 650nm Fiber Optic Cable Tester VFL
The KFL-11P Pen Type Visual Fault Locator (VFL) is a compact and reliable fiber optic testing tool designed for quick fault detection, fiber identification, and continuity testing. Utilizing a bright 650nm red laser, it efficiently locates fiber breaks, bends, damaged connectors, and other transmission faults in single-mode and multimode fiber optic networks. Available in 1mW, 10mW, 20mW, and 30mW output power options, the KFL-11P supports both continuous wave (CW) and pulsed operating modes to suit different testing environments. Its universal 2.5mm connector is compatible with FC, SC, and ST connectors, while an optional 1.25mm adapter enables LC connector testing. Designed with a lightweight pen-style housing, the KFL-11P weighs only 80g and offers up to 30 hours of operation (1mW version) using two AA batteries. It is an ideal testing tool for FTTH installation, telecom maintenance, fiber optic engineering, data centers, and network troubleshooting.
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