The engine analyser EPM-XPplus-vibro is designed for additional vibration measurements on engines. The vibration sensor will be electrically connected on one side to the hand-held device via a cable and on the other side via a magnetic holder to the injector or pump. This offers advanced diagnostic options for marine engines. The vibration sensor records the point of lifting and landing of the injector needle as well as the beginning and ending of the fuel supply by the injection pump.