Grandway is a Chinese company that manufactures fiber optic testing instruments including OTDRs, optical power meters, and visual fault locators. [The document provides details about] Grandway's FHO5000 series of OTDRs which feature a 7-inch touchscreen, IP65 protection, over 12 hours of battery life, and optional multi-mode and PON testing modules. The FHO5000s are designed for field installation and maintenance of FTTx, CATV, access, metro and other optical networks.