1Anti Collision And Dustproof Design: This fiber optic cable tester adopts excellent aluminium alloy material to make the main body, which can prevent collision and dust, and the grounding design of the shell can effectively prevent damage. 2Multifunctional: This fiber optic source tester is multifunctional and can be used to locate defects on cables and cables, visually search for fibre breaks and use defective equipment on fibre optic cables. 3Non Contact Connection: This fiber visual fault locator uses a non contact connection, which does not damage the fibre optic and the end face of the transmitter, and the output power is not affected by voltage fluctuations. 4Compact And Lightweight: This fiber optic cable tester tool is small in size, light in weight, energy saving, easy to carry and at the same time stable power output is a good tool for fibre optic testing. 5Wide Application: This visual fault locator has a wide range of applications, designed for ST, SC, FC, LC interference with different fibre optic cables in round and square shapes, and can be used for CATV telecom engineering maintenance, integrated cabling system fibre optic engineering, optical device production and research, optical communications, optical measurement and drive engineering, and so on. 1 x Visual Fault Locator 1 x Ceramic Core 1 x Storage Bag 1 x Hanging Rope 1 x Manual