... patient monitor USA Brand ECG, HR, RESP, NIBP, SPO2, RR, TEMP, Battery 2-TEMP, 2-IBP, Nellcor Spo2, EtCO2),Mult-gas/O2 ... centigradeTransportation and storage temperature:+2~+8 centigrade(If use IRMA O2 sensor)Relative humidityWorking ≤85%Transportation and storage ≤93%Atmospheric pressureWorking ... silencedVolume45~85 dB measured at 1 meter 15 inch patient monitor