Feature:1. Compact and Lightweight: Our visual fault locator is small in size and light in weight, making it easy to carry while maintaining stable power output for fiber optic testing.2. Impact and Dust Resistance: Featuring an aluminum main body design, our fiber optic light is designed to prevent collisions and dust, with a grounded shell design to effectively prevent damage.3. Pen Style Design: Specifically designed for locating faults on cables and wires, our visual fault locator is ideal for visually identifying fiber breaks and defects in cable connections.4. Non Contact Connection: The visual fault locator ensures non destructive testing of fiber optics and transmitter end faces, with the output power unaffected by voltage fluctuations.5. Wide Compatibility: Equipped with a 2.5mm universal connector, this fiber optic tester is designed for ST, SC, FC, and LC connectors of different shapes, making it suitable for various applications such as CATV telecom engineering, fiber optic network systems, optical device production and research, optical communication, and optical measurement.Specification:Item Type: Visual Fault LocatorMaterial: Aluminum Alloy, Ceramic Output Power: >30mWOutput Wavelength: 650nm10nmFiber Adapter: 2.5mm Universal ConnectorOperating Temperature: 0 to +60Storage Temperature: -20 to +70Battery Type: 2 x AA Alkaline Battery (Not Included).Package List:1 x Visual Fault Locator1 x Ceramic Core1 x Storage Bag1 x Hanging Rope1 x User Manual