The RN-121 is a submersible Remotely Operated Vehicle (ROV), designed for underwater video and photogrammetry inspection and surveying operations. This compact ROV features a 50m depth rating and is powered by a 12V battery system. It has four thrusters for maximum maneuverability and allows for easy integration of additional payloads such as sonars or sensors. The ROV is equipped with advanced navigation tools for precision survey operations, along with a slim form factor for tight access to difficult-to-reach areas. The on-board high definition camera is used to provide live video at resolutions up to 1920 x 1080 pixels. Additionally, the RN-121 has built-in obstacle avoidance technology, which allows the system to automatically avoid obstacles in its path. This model has been designed to enable underwater inspections with the highest levels of efficiency, safety and accuracy.