1KM OTDR Launch Cable Box Optical Fiber Rings OTDR Dead Zone Eliminator SM 9/125
1 Pcs 1KM SM-APC OTDR Fiber Optic Launch Cable Box. SC/FC/LC-APC optical fiber OTDR transmission cable box test extension line, waterproof and dust-proof, anti pressure and anti drop, excellent sealing, test standard, easy to carry.