This high precision OTDR with VFL is a unique product designed for construction and maintenance of telecommunication and CATV networks. It can be widely used in engineering construction, maintenance test and emergency repair of all fiber optics related systems. This OTDR is more compact and easier to use than a standard OTDR on the market today, with its compact, lightweight design. It effortlessly provides event information through its TFT color display and data storage capabilities. Through the USB interface, test data can be easily uploaded to your PC, to facilitate the post-processing, archiving and printing.