The Lanview Fiber Laser Pen optical fiber locator is a pen-type fiber optic testing tool designed for locating, routing, and detecting faults in optical cables. It features an output power of 10mW, a red laser at 650nm, and a compatible 2.5mm connector supporting SC, FC, ST, and LC connections with an adapter. It is used to detect breaks, bends, weak connections, and continuity issues and can assist in identifying fibers in dead zones of an OTDR. The device supports both continuous wave (CW) and pulsed operation and is powered by standard AA batteries. Its compact form makes it suitable for field technicians and general optical fiber maintenance tasks. Not recommended for dark-colored cables or armored cables.