We offer kingfisher ki6352cw visible pen. visible pen, 1.25 mm ferrule, pulsed the ki6350 series visual fault locator is the simplest possible optical fiber tester, with an operating range of a few km. visible light is injected into the fiber under test, and can be seen from a fiber end, or through most 3 mm cable types at a break or loss point. features * very simple to use* high quality universal connector* pulsed or cw models* durable construction* ip67 dust & water immersion protected this is a new unit! http:www.testequipmentconnection.com66549kingfisher_ki6352cw.php