Lightwin FiberChecker 10mW Visual Fault Locator, 655nm Red Laser, 2.5mm Ferrule for SC/FC/ST

Locating breaks, bends, and faulty connectors in fiber optic cables is a daily challenge for technicians. The Lightwin FiberChecker 10mW Visual Fault Locator (VFL) injects a powerful 655nm red laser light into the fiber, making faults visible to the naked eye through the cable jacket. This compact, durable tool is essential for troubleshooting and verifying fiber continuity in both single-mode and multi-mode networks.

Who is it for

Network installers, maintenance technicians, and field engineers working with fiber optic infrastructure will find this VFL indispensable for quick fault identification and link verification.

Main features

• High-power 10mW red laser at 655nm ±10nm for clear visibility
• Universal 2.5mm ferrule connector fits SC, FC, and ST adapters
• Continuous wave and 2Hz pulsed modes for different testing scenarios
• Up to 10km range on single-mode and 5km on multi-mode fiber
• Durable aluminum alloy housing with dust cap for connector protection
• Powered by 2x AA batteries with up to 60 hours of operation

Specifications

• Product type: Visual Fault Locator (VFL)
• Light source: Red laser diode
• Wavelength: 655 nm ±10 nm
• Output power: 10 mW
• Fiber compatibility: Single-mode (SM) and multi-mode (MM)
• Test range: Up to 10 km (SM), 5 km (MM)
• Connector type: Universal 2.5mm ferrule
• Compatible connectors: SC, FC, ST
• Operating modes: Continuous wave (CW), pulsed (2 Hz)
• Power supply: 2x AA batteries
• Battery life: 60 hours
• Operating temperature: -10°C to +50°C
• Storage temperature: -20°C to +70°C
• Housing material: Durable aluminum alloy
• Features: Dust cap for connector protection

Tips

For best visibility, use the pulsed mode in bright environments. Always clean the ferrule and connector end faces before testing to avoid false readings. The dust cap should be replaced when the unit is not in use to protect the laser aperture.