This Jonard Tools OTDR-1500 Professional Multi-Function OTDR is an all-in-one handheld device for evaluating FTTx and access network construction and maintenance, identifying fiber breakpoints, measuring cable length, and calculating relative optical power losses. This version includes five different testing modules: 1310/1550nm OTDR module, 1310/1550nm Light Source module, Power Meter module, Visual Fault Locator module, and Help module, for use with a variety of applications. A bright 7" color LCD touchscreen display with an included stylus makes it quick and easy to evaluate incoming data.