... OLED display, four direction adjustable. SpO2 and pulse monitoring, and Waveform display. Low-power consumption Finger oximeter with dual-color OLED ... OLED display, four direction adjustable.SpO2 and pulse monitoring, and Waveform display.Low-power consumption, continuously work for 50 hours.Small ... -2 standard Finger oximeter with SpO2 and pulse monitoring, and Waveform display