Tethys Robotics AG unveils Tethys ONE - the underwater robot for automated underwater Inspections
22-08-2024 – Tethys Robotics AG unveiled the new version of Tethys ONE, developed to advance underwater inspections with greater safety, efficiency, and precision. The update reflects our ongoing collaboration with partners in energy, defense, and infrastructure to meet the toughest subsea challenges.

Tethys ONE stands out in the global market as a dual-functionality robot, capable of operating both via drone pilot control (ROV) and in full autonomous mode (AUV). Weighing just 35kg (77lbs) in air, this compact yet powerful device is optimized for rapid deployment and exceptional performance in confined underwater spaces at depths of up to 300 meters (984 feet). Its state-of-the-art propulsion system and advanced georeferenced localization technology enable omnidirectional movement and stable operations in turbid waters, withstanding currents of up to 2 m/s (3.5 knots).
The introduction of Tethys ONE is poised to automate and facilitate underwater inspections and search missions across multiple industries, including hydropower energy, offshore wind, oil and gas, as well as search and rescue and unexploded ordnance (UXO) sectors. By delivering superior performance and safety in challenging underwater environments, Tethys ONE is set to become an essential tool for companies looking to optimize their underwater operations.
Source & photo credit: Tethys Robotics AG