The invention relates to a system for monitoring CPR performed on a manikin. The manikin comprising means for measuring at least one first parameter concerning a performed CPR,and a measuring unit for positioning on the chest of a manikin or patient during CPR comprising sensors for measuring at least one second parameter concerning a performed CPR. The system also comprising analyzing means for analyzing said first and second parameters measured during a chosen time period during a performed CPR on said manikin and evaluating the measured parameters.