A360 is a non-invasive, handheld patient Oximeter. It use OLED to display the arterial oxygen saturation (SpO2), pulse rate (PR), pulse strength and plethysmogram. It operates on battery power supply. It is compact, small, light, and easy for learning and handling. It is suitable for monitoring adult and child patients. It is widely used in the hospitals operation room, ICU, clinic section office, out-patient department, sickroom, emergency treatment, and the recovery and health care organizations, or in the family nursing and in the process of transporting patients.