1Professional Equipment: This visual fault locator is specifically designed for the design and maintenance of fiber optic cables and lines, for locating defects on cables and cables, visually searching for fiber breaks and fiber optic cable defect equipment. 2Energy Saving: This visual fault locator has good energy saving and stable output, making it a good tool for fiber testing. 3Contactless Connection: This visual fault locator uses a non contact connection to damage the fiber and the end face of the transmitter, and the output power is not affected by voltage fluctuations. 4Aluminum Alloy: The aluminum alloy housing of the positioner has excellent corrosion resistance and rust resistance, which provides a long service life for the positioner. 5Lightweight: The positioner is small in size, like a pen, light in weight, easy to carry, and has good working performance.