Feature:1. Good Performance: The visual fault locator has an output distance of 10KM, a wavelength of 65010nm, with a longer penetration distance and stable performance.2. 2.5mm Connector: The fiber optic detector has a universal 2.5MM connector, supports FC, SC, ST common fiber interfaces, and has good compatibility.3. Working Principle: Driven by constant current source, connected to the optical interface to enter the multi mode and single mode fiber to realize fiber fault detection.4. Portable Design: The fiber optic tester is portable design, comfortable to hold, and has a detachable metal pen tip for easy replacement of ceramic core.5. Applicable Fields: This visual fault locator is suitable for fiber optic engineering construction, fiber optic network maintenance, optical device production and research, etc.Specification:Item Type: Visual Fault LocatorOutput Distance: 10KMWavelength: 650NM10NMFiber Optic Connector: Universal 2.5MM ConnectorWorking Temperature: 10-45Flashing Frequency: 1HZWorking Humidity: 30%-90%Battery Type: 2 x AAA Battery (not included).Package List:1 x Visual Fault Locator1 x Storage Bag