Double color OLED display;
Compact,convenient and one-touch operation,automatic measurement;
8 display,monitor blood oxygen saturation,pulse parameters,pulse bar and plethysmogram display;
Small and lightweight(total weight 50g includes battery),easy to carry;
Low-power,the two AAA batteries with the sustainable use of 30 hours;
Alarm when low-voltage;
Automatic shutdown function within 7 seconds after fingertip off;