Fiber Checker is a handy tool to check the breaks and faults of the fiber in the optical network and FTTH construction. With short visible wavelength, Fiber Checker can be a fiber broken indicator. Fiber Checker sends a visible 650nm wavelength red laser light through a fiber optic cable, the breaks or faults in the fiber will refract the light, creating a red bright glow around the faulty or broken fiber area. While you are located in manhole such tiny space, Fiber Checker is your best handy tool.

VFL406 series Visual Fault Locator is the instrument used to identify and locate fiber failures by visible light in very sharp speed. With strong protection laser, leakage points can be get clearly through 3 mm PVC Jacket, Have high and stable power, it an ideal tool for failure identification in network installation and fiber devices accessories manufacturers.