Rotaphone is a six-component short-period seismic sensor developed by the Department of Seismotectonics in cooperation with the Faculty of Mathematics and Physics, Charles University. This innovative device is capable of recording both the translational and rotational components of the ground motion induced both by natural and artificial events. Rotaphones are now used for regular permanent measurement in the Czech Republic. Seven Rotaphones were installed around the town of Litoměřice where the Ringen geothermal project is being implemented. Another Rotaphone was installed in the Dukovany nuclear power plant. One of the advantages of Rotaphone is that it can reduce short-period seismic noise generated by the technology installed in the nuclear power plant.