The OPM200 is the ideal companion for fiber optic installers or IT administrators who want to test fiber optic systems at their output level. It allows for attenuation tests on passive fiber optic cabling in conjunction with a light source. Additionally, the integrated visible laser light source can effectively check for fiber breaks or defective connectors. This compact multi-tool also features a built-in RJ45 cable testing function for quick verification of RJ45 patch or installation cables for interruptions, short circuits, and wire swaps. Working in dark environments is made easy thanks to the LCD backlighting and the integrated flashlight.