EDAN M3A Pulse Oximeter     Portable and lightweight  LED numeric display with a color TFT screen  Flexible configurations to meet different clinical needs  Auto/Manual/Continuous/Average BP mode  Pitch tone  Real-time measurements display  Trend table and trend graphs  Extremely long working-time on battery only  Barcode scanner support (optional)  Nurse call function  LAN/Wi-Fi connections (optional)  Bi-directional communication with the MFM-CMS central station (optional)  Data management via PatientCare Viewer software (optional)