Light Locator OEM 5732 10mW 650nm single-mode/multi-mode 10m test source, fiber fault finding up to 8–12 km

Light Locator OEM 5732 is a compact visual fault locator designed for continuity testing and quick identification of breaks, microbends or connector faults in optical fibers. Operating at a visible 650 nm wavelength with an output power of 10 mW, this handheld 10 m test source is compatible with both single-mode and multi-mode fibers and can reveal faults detectable visually along fiber runs of approximately 8–12 km under typical conditions.

Advantages

The device provides a bright, focused red beam that simplifies end-to-end continuity checks and localizes faults without requiring complex equipment. Its compact form factor and straightforward operation make it suitable for field use during installation and maintenance. The visible wavelength allows technicians to spot breaks and bends and to verify connector mating quickly. Designed for compatibility with a range of fiber types, the unit supports fast on-site troubleshooting and reduces time spent on locating physical defects in fiber links.

Suitable for

• Quick continuity checks of single-mode and multi-mode fiber runs
• Pinpointing breaks, bends and poor connectors in patch panels and splice trays
• Field verification during installation and routine maintenance
• Training and demonstration of fiber continuity and fault-finding techniques

Key specifications

• Wavelength: 650 nm (visible red)
• Output power: 10 mW
• Test range (typical visual fault finding): approximately 8–12 km
• Fiber compatibility: single-mode and multi-mode
• Form factor: handheld test source designed for field use

How to use

Connect the Light Locator to the fiber under test using the appropriate adapter or directly to exposed fiber ends where safe and permitted. Activate the unit to emit the visible red beam and observe along the fiber route or inspect connectors, junctions and splice enclosures for bright light indicating a break or leakage. For continuity checks, confirm illumination at the far end or at intermediate access points. Power the device and follow standard safety practices to avoid direct eye exposure to the beam.

Usage recommendations

Use the visual locator in dimly lit environments for easier detection of the red beam. When inspecting long runs, check accessible terminations and junctions first, then proceed along the path. Complement visual fault finding with optical power or OTDR measurements for precise distance localization and to quantify loss when necessary.