Uni-T UT691-10 Visuel fejllokalisatorUni T UT691 10 visual fault locator The Uni T UT691 10 is a visual fault locator designed for identifying optical fibers, detecting faults, and performing routine maintenance tasks. The device uses a red laser with a wavelength of 650 10 nm and offers both continuous and pulsed modes, allowing you to adapt its operation to the task at hand. An output power of at least 10 mW enables the diagnosis of optical fibers ranging from 8 to 10 km in length,