... patient monitor USA Brand ECG, HR, RESP, NIBP, SPO2, RR, TEMP, Battery 2-TEMP, 2-IBP, Nellcor Spo2, EtCO2),Mult-gas/O2 ... ,Thermal Recorder, Nellcor Spo2, EtCO2(side stream, main stream),Multi-gas/O2Environment Ambient TemperatureOperating temperature: 0~+40 centigradeOperating temperature: +10~+35 ... silencedVolume45~85 dB measured at 1 meter 15 inch patient monitor