... monitor USA Brand ECG, HR, RESP, NIBP, SPO2, RR, TEMP, Battery 2-TEMP, 2-IBP, Nellcor Spo2, EtCO2),Mult-gas/O2 15 ... lifetime 3) Backlit buttons for easier operation in dim situation 4) SD memory card(optional) 5) Dual alarm light 6) Nurse ... )Battery Charge LED1 (Yellow)Battery TypeRechargeable Lithium ion battery11.1V/4.0AHCharge time≤6 hours (2 batteries for 12 hours)Operating ...