70%~100% saO2 : ±2 digits (1 S.D.,2.5%) 50%~70% saO2 : Unspecified As verified by clinical equivalence testing, where the standard deviation of the difference between Med-Linket and Nellcor sensors has been evaluated over the specified SaO2 range. Temperature storage: +5 to +45℃ Temperature operation: +10 to +40℃