Universal Connector Support: This 50mW visual fault locator works seamlessly with ST, SC, FC, and LC connectors. It's designed to handle both circular and square optical cable interfaces and comes equipped with a 2.5mm universal connector and a handy LC adapter. Accurate Fault Detection: Easily pinpoint breaks, poor connections, bends, and cracks in fiber optics. This locator reflects light off faults within the fiber to deliver precise locations, aiding swift troubleshooting and repairs. Superior Fiber Reach: Capable of covering distances between 40-50 kilometers, our visual fault locator efficiently identifies faults over long ranges. Thanks to its effective power supply circuit, it ensures consistent performance during extensive use. Advanced Functional Design: From constant output power to low battery signals and enhanced battery longevity, this portable device is tailored for both field and lab use. Ideal for frequent traveling engineers, it supports extensive distance checks. Robust and Portable: Featuring a lightweight pen-style design, this fault locator is built with a durable stainless steel head and aluminum body to resist impacts and dust. The included carrying case and electrostatic discharge protection add an extra layer of durability. Colour:Silver Material:Plastic+Metal The actual product may have slight color difference or difference, which will not affect the use Package Contents: 1x Optical Fiber Test Pen 1x FC Male to LC Female Adapter