DRE offers the Nellcor N-190 pulse oximeter refurbished.  This monitor is intended for use on adult, prediatric,a nd neonatal patients.  This N-190 is designed for continuous, noninvasive monitoring of functional oxygen saturation of arterial hemoglobin (SpO2), and pulse rate (measured by SpO2 sensor).  Operate on internal battery, for limited periods, or AC power.