We needed inspection tools that grade to IEC 61300-3-35 consistently across our sites. This range delivers repeatable pass/fail results, so acceptance no longer depends on who is holding the probe. Documentation supports our audits well.
Fiber Light Source Pen
Fiber light source pens — pocket visible-light sources for fast continuity checks and fiber tracing in the field. Request a quote.
Product Details
A fiber light source pen is the pocket instrument that injects visible light into a fiber for a fast continuity check and fiber identification. Connect it and light appears at the far end if the fiber is continuous, or escapes visibly at a break or sharp bend nearby — the quickest go/no-go a technician can carry. For the near-end faults and “which fiber is this?” questions that dominate field work, the light source pen answers in seconds.
Aevumix supplies fiber light source pens in visible red (VFL-style) formats for continuity, tracing and near-end fault location. Pen-format and pocketable, with continuous and flashing modes, they use output matched to the fiber distance you need to check and a universal 2.5mm interface with a 1.25mm adapter for LC. As an everyday troubleshooting tool, the light source pen confirms continuity and identifies the right strand without setting up heavier test gear.
Because the right pen depends on your test distance and connectors, we help you specify the correct unit. Send your typical link lengths and connector types and we will recommend a fiber light source pen and provide a quote.
About this item
- Pocket visible-light source for continuity and tracing
- Reveals near-end breaks and sharp bends visibly
- Continuous and flashing output modes
- Universal 2.5mm interface with 1.25mm adapter
- Identifies the correct fiber in a bundle
- Fast go/no-go without heavy test gear
- Rugged, pocketable field design
Based on 10 customer reviews
A loss test is only as good as the source stability. These light sources hold their output with low drift, so our loss readings are the link, not the instrument. Consistent performance across every unit we have tested.
The stable light source gives me a reference that does not wander between readings, so my loss numbers hold up. The tone output helps identify fibers in a bundle too. Handy, reliable, and built for the field.
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Tell us what you need and our team will get back to you with pricing and availability as soon as possible.
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Frequently Asked Questions
Fast continuity checks, fiber identification and near-end fault location. It injects visible light so a good fiber shows light at the far end and a break or sharp bend glows visibly nearby.
A visible-light source pen works on the VFL principle — injecting bright visible light to reveal faults and confirm continuity. Tell us your needs and we will recommend the right output level.
Coverage depends on output power and fiber, commonly several kilometres for visible checks. Send your link lengths and we will recommend the right pen.
A universal 2.5mm interface (SC, FC, ST) with a 1.25mm adapter for LC. Send your connector mix and we will confirm.
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