Fiber Optic Visual Fault Locator VFL SM MM 10mW 650nm up to 10km - Cablematic
Visual Fault Locator Mini w/2.5mm - Fiber Instrument Sales
2.5mm to 1.25mm Fiber Optical Adapter for Visual Fault Locator - FS.com
Visual Fault Locator 30MW, HPOYUELC,30KM VFL Fiber Light Tester Meter, Fiber Red Light Source, Suitable for FC/SC/ST/LC Universal Connector, with FC Male to LC Female Adapter.: Amazon.com: Industrial & Scientific
Amazon.com: Visual Fault Locator (VFL), Red Light Pen 10mW Fiber Optic Cable Tester Meter with 2.5mm Connector, Up to 10KM : Tools & Home Improvement