The FIFISH E-Master is a professional underwater ROV designed for inspection, mapping, and exploration operations in marine environments. Delivered with a 200-meter umbilical cable on a reel, it enables efficient intervention on submerged infrastructures, offshore installations, port structures, or scientific missions. Its 4K UHD camera, combined with a 1/1.8″ CMOS sensor, captures high-definition images with an ultra-wide 176° field of view and precise focus from 10 cm, ensuring excellent underwater observation quality. Its 10,000-lumen LED lighting system with a 160° beam angle provides optimal visibility even in the darkest environments. Equipped with 6 corrosion-resistant metal-finned thrusters and a high-performance propulsion system, the FIFISH E-Master reaches a maximum speed of 3 knots while offering excellent navigation stability. Its two batteries provide up to 150 minutes of operational time for extended missions. It also integrates advanced features such as automatic 3D trajectory planning (U-INS), automated map data collection (QY-BT), intelligent target tracking, and measurement tools for technical inspections and underwater surveys. The FIFISH E-Master is a high-performance solution for professionals in offshore energy, maritime engineering, industrial inspection, and underwater research.