Visual Fault Locator, Fiber Optic Cable Tester Pen, VFL Red Light Tool with FC to LC Adapter & 2.5mm Universal Connector (Golden, 30 KM)

["POWERFUL FAULT DETECTION : Engineered for reliable long-distance fiber tracing. This robust visual fault locator features a high-efficiency 650nm red light source that easily travels through optical fibers up to 30km. It instantly illuminates breaks, bends, cracks, and poor connections with a bright red glow for rapid troubleshooting.","UNIVERSAL 2.5MM COMPATIBILITY & LC ADAPTER: Designed to work seamlessly with your entire telecom toolkit. The standard 2.5mm universal connector flawlessly supports SC, FC, and ST interfaces. Additionally, the included premium FC Male to LC Female adapter ensures effortless compatibility with 1.25mm LC connectors, covering all single-mode and multi-mode fiber needs.","DUAL WORKING MODES FOR EFFICIENCY: Adapt to any testing environment with the intuitive slide switch. Select 'Continuous Mode' for steady fault illumination, or switch to 'Pulsed (Flashing) Mode' to quickly trace and identify specific fibers in high-density server racks or bright outdoor environments.","CRASH-PROOF & ESD-SAFE CONSTRUCTION: Built for the harshest field conditions. Featuring a heavy-duty aluminum alloy body and a stainless steel head, this VFL is highly resistant to impact, dust, and corrosion. The advanced anti-static (ESD protection) chassis grounding design safely protects your delicate optical components from electrical damage.","PORTABLE DESIGN FOR PROFESSIONALS: Compact, lightweight (approx. 165g), and pocket-sized for ultimate convenience. Powered by 2 standard AA batteries, (Note: Batteries are NOT included due to shipping safety regulations)，it features a stable power circuit for extended battery life and a low battery warning. An essential, field-ready testing tool for CATV maintenance and data center wiring."]