ï¬ Easy & simple operation ï¬ Small and light weight (50g including batteries) ï¬ Display: SpO2, PR,Pleth Bar ï¬ Low power consumption, can work min 30 hours continuously with 2 AAA batteries ï¬ Automatically power off 8 seconds after usage ï¬ Low battery indicator ï¬ Multi-direction display ( two rotations ) ï¬ Wide application, suitable hosptial clinic and home care