9.Clock function.
0 millimeters (H) x 60. Performance Display mode: color display SpO2 measurement range: 0 % ~ 100 %(resolution: 1 %) Accuracy: 70%~100%: ±2% 0%~69%: unspecified PR measurement range: 30 bpm~250 bpm(resolution: 1 bpm) Accuracy: ±2 bpm or ±2 % whichever is greater. It is applicable for use in hospital oxygen bar community healthcare and exercise healthcare(It can be used before or after exercise but not recommended to use during exercising).