Remotely operated underwater vehicles or ROUVs are the fastest developing underwater mapping technology. ROUVs are small vessels designed to move underwater with limited autonomy of a few hours, up to one day, usually supported by surface vessel. Before defining concepts used with the submersible, existing solutions were investigated. It was noticed that there were no ROUVs on the market that have wireless control over long distances, which was an incentive to create one. The developed submersible had to meet the conditions of long-distance control and a working depth of 50 meters, additionally it was also important to be able to economically build a prototype. Communication with the submersible is conducted via an Internet modem because it is the cheapest solution that fulfills all constraints. A motorized winch, located on the float, was chosen for depth control due to its reliability and simpler construction of the submersible. Brushless motors immersed in water were selected as main source of propulsion. The shape of designed ROUV is determined by the need to have two dry chambers and the requirement to position the camera so that it can record. The chambers are placed in a "T" configuration and surrounded by casing, on which the motors are mounted, and the winch cable is attached. Before building the submersible, it was necessary to select and purchase electronic components. The electronic components were selected in such a way that they meet the set requirements and are in an acceptable price range. The construction of the diver is divided into several sub-assemblies, namely: chamber with camera, main chamber, outer casing, and engines. After building all sub-assemblies, the submersible was assembled and tested. Testing of ROUV proved initially planned functionality of submersible, and problems like winch slipping and water leaking were identified.