Description Product Reviews Visual Fault Locator 650 nm Class IIIA laser diode identifies faults in single and multi-mode fiber up to 3 miles long Universal connector accommodates 2.5mm ferruled connectors, such as FC, SC, and ST connectors Has three different modes: Continuous wave, pulsing, and slower pulsing mode Works in OTDR dead zones and is used for end-to-end visual fiber identification Light and portable pen-style design is perfect for on the go use 0 Reviews Hide Reviews Product Reviews