0.96"DUAL COLOR OLED DISPLAY (BLUE AND YELLOW)
DISPLAY OF SPO2,PR,BAR GRAPH AND PULLSE WAVEFORM
FOUR DIRECTION AND SIX DISPLAY MODES
ADJUSTABLE BRIGHTNESS
LOW BATTERY INDICATION
AUTOMATIC POWER OFF WHEN THE FINGER LEAVES THE DEVICE FOR 5SEC
POWER SUPPLY TWO AAA BATTERY
CONTIOUS WORKING TIME:20H