... 8.5cm8Boxes /CTNS : 480×420×200mm Finger Pulse Oximeter Function:1,Monitoring pulse, SpO2,PR(Pulse Rate). 2,Displaying volume and column diagram ... of stroll.3,Equipped accompany with sound of heartbeat. Feature:1,Display Method: Color ... voltage is so low that normal operation of the oximeter might be influenced5,The product will automatically be ...