Bruker EMX type EPR spectrometer with double cavity operating either at ~9.5 GHz (X band) or ~32 GHz (Q band).
The magnetic field is modulated at a frequency of 100 kHz.
The spectra can be recorded at room temperature (25°C), liquid nitrogen (-196°C), liquid helium (-269°C) and at a variable temperature from -196°C up to 300°C.