1Low Consumption: The visual fault locator has a small size, light weight, which is energy saving, easy to carry and stable, a good tool for optical fiber testing. 2Non Contact Connection: The visual fault locator will not damage the end face of the optical fiber and the transmitter, and the output power is not affected by voltage fluctuations. 3Long Distance Output: This visual fault locator output and strong red light can walk 20 kilometers away in fiber, and the high efficiency power supply circuit can achieve stable power supply. 4Easy to Check Fiber Faults: This visual fault locator can accurately detect and locate fiber breaks, as well as problems such as poor connections, fiber bends or cracks. The detector will emit 650nm strong light, and the break or fault in the optical fiber will refract the light to determine the location of the fault. 5Aluminum Alloy: Made of aluminum alloy, the visual fault locator has qualities like wear resistance, heat resistance, corrosion resistance, and so on, providing the product a long service span.