Abstract: Telemetry system for a ship propulsion system with a stationary part and a movable part that is movable relative to the stationary part. The telemetry system includes a processor, a data acquisition unit, at least one sensor, and a local power source. The processor, the at least one sensor and the power source are arranged in the movable part. The at least one sensor can measure an operational state of the movable part. The processor is connected to the at least one sensor for receiving signals from the at least one sensor and can transmit the received signals to the data acquisition unit. The local power source is arranged for providing power to at least one of the processor and at least one sensor, and the transmission of the received signals is arranged by a wireless communication link between the processor and the data acquisition unit.