This is a kind of fine quality finger pulse oximeters, with TFT display, which will show the SpO2 blood-oxygen value, perfusion index value(PI%), pulse rate value(PR bpm), pulse column, pulse rate waveform and electric quantity. Adopt advanced technology, quick measurement and accurate data. Suitable for being used in family, hospital, oxygen bar, community bodycare, physical care in sports and etc. Features: Small volume, lightweight and convenient to carry, just put into your pocket or bag. TFT display, ability to display SpO2 blood-oxygen value, perfusion index value(PI%), pulse rate value(PR bpm), pulse column, pulse rate waveform and electric quantity. High accuracy sensor, support quick measurement and provide accurate data. Suitable for non-invasive monitoring of blood-oxygen saturation and pulse rate in hospital and families. Intelligent power-saving, automatically enter standby mode after 10 seconds of no operation. With low power consumption, 2 AAA batteries last more than