The tools that allow you to perform a comprehensive assessment on a fibre optic cable are fibre light sources, optical power meters and fibre optic visual locators. The optical cable identifier is the first intelligent high-precision testing instrument equipped with multiple functions such as cloud wireless tra nsmission and smart optical cloud platform. It adopts an 8-inch capacitive ful l-touch screen supporting multi-point touch, Integrated optical cable. Cable and pipe locator tools are nondestructive evaluation (NDE) technologies that detect and identify buried cables and pipes based on the measurement of electromagnetic (EM) signals emitted by them. In today's fast-paced workplace maximizing productivity is essential. This paper examines the depth of the techniques used by visual.