... , long work time (Max. 4 hours for 2 batteries)* SD memory card (Option)* Dual alarm light. Independents parameter alarm light & technical alarm ... .Option:12-lead ECG, 2-IBP, Recorder, EtC02 (side stream, main stream), Anesthetic Gas.Nellcor SpO2, Masimo SpO2 , ICG , SD memory Card Patient ...