[en] A new type of calorimeter designed for measuring parameters of low energy ion beams is proposed. The calorimeter represents a thermoresistor of a thin conducting wire reeled up on the frame and absorbing a part of a beam. Tungsten is chosen as a thermoresistor. The calorimeter has been tested on electron pulsed beams, α particles and deuterons as well as quasicontinuous nitrogen and neon ion beams. The dependence of frame resistance on ion beam power obtained at the Y-300 cyclotron is given. It is concluded that the measurement error is determined mainly by the accuracy of measurement of the frame resistance and beam current constituting about 10 %