The Keyence FU-77TZ is a high-performance, thrubeam type fiber optic sensor unit designed for precision detection in demanding industrial environments. Featuring a cylindrical M4 head and an exceptionally small ø1.0 mm fiber diameter, it is ideal for installation in tight spaces where conventional sensors cannot fit. Its high-flexibility cable with an R1 mm bending radius ensures durability and reliable performance in applications involving repetitive motion, such as on robotic arms. The FU-77TZ provides a long detection range and is capable of detecting extremely small objects, making it a versatile solution for automation, electronics assembly, and quality control processes.