Shaft Power Meter (SPM)

System for engine / ship performance & fuel / propulsion efficiency



Your benefits

  • Cost-effective solution
  • Easy self installation possible - plug & play by crew
  • No electronic parts on shaft
  • Basis for every fuel performance system
  • Easy to read trend curves for performance evaluation
  • Steady observation of hull and propeller efficiency possible
  • Easy calibration of SPM based on indicated power
  • Maintenance free

Areas of application

System for measuring engine / ship performance and fuel / propulsion efficiency as well as monitoring SHaPoLi

The Shaft Power Meter is the key component for measuring ship performance and fuel / propulsion efficiency. It is the cost-effective solution when reliable shaft power measurement and monitoring (Shaft power limitation) is required. The system is easy to install and requires no electronic parts on the shaft. SPM operates absolutely contact-free and can be extended with our fuel performance system FPS to obtain all important data for optimizing ship performance and fuel efficiency as well as ship propulsion performance.



  • RPM, torque and power signals
  • Reliable data
  • Key component for fuel performance system FPS to optimize fuel / propulsion efficiency
  • PLC-based system with web-based visualization via Ethernet
  • Data storage on SD card

Technical Data

  • Power supply: 24 VDC
  • Power consumption: >2 A
  • Min / max shaft diameter: 200 / 1200 mm
  • Max speed of shaft: 800 rpm


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