The FF-980PRO OTDR is a compact and lightweight handheld device that facilitates fiber optic network construction, testing, and maintenance. It features integrated optical time domain reflectometer (OTDR), optical power meter (OPM), light source (VFL), and visual fault locator (OLS) functions. Test data can be uploaded to a PC via USB for post-processing, archiving, and printing to aid in fiber network troubleshooting and maintenance.