Thermal printing system Power supply both AC and DC High capacity built-in lithium rechargeable battery Lead:Standard 12 leadsPatient leak current:<10uAInput impedance:>=50MFrequency response:0.05Hz-150Hz(-3dB)Time constant:Time constant>3.2sCMRR:100dBDimention of recording paper:80mm(w)x20m(L)paperPaper speed:25mm/s,50mm/sSensitivity choice:5,10,20mm/mV.Standardsensitivitity is 10mm/mV+0.2mm/mV ...