... Defibrillator effect Input circuit current ≤0.1μA Input Impedance ≥2.5MΩ Patient current leakage <10μA Calibrating voltage 1mV ... 25,50mm/s(±3%) 25,50mm/s(±3%)Sensitivity AUTO,2.5,5,10,20mm/mV Recording mode Thermal Array printing ... specification 63mmx30m,roll 50mmx20m,rollLCD display .320x240 graphic LCD,display status&waveform. 20x2 character LCD,display status.Safety classification IEC60601-1 class I ...