FEATURES: 1、Oxygen saturation simulation range: 100%-71%, step of 1%, error ≤1% Initial value 98 70%-35%, step of 1%, error ≤ 2% 2、Pulse rate simulation range: 300bpm-20bpm, step size 1bpm, error ≤1bpm, initial value 80bpm 3、Curve selection: BCI, NELLCOR, MINDRAY, MASIMO1, OxiMax, MASIMO2, EDAN, Creativ, BLT, Comen, GoldWay, Philips, GE Dash, ZonDon, Kantai, MASIMO Initial Value: NELLCOR