Patient Monitor & Fingertip Pulse Oximeter FuyouMed Fingertip Pulse Oximeter High accuracy and durablity. Sp02, PR, Sp02 bar graph and pulse waveform display. *Dual color OLED display. *Dual color OLEDdisplay with four directions. *Compactand power-saving. *Battery capability indication. *High accuracy and durablity. *Sp02,PR,Sp02 bar graph and pulse waveform display. *Power supply: two standard AAA batteries. *Operation menu for function setting. *Automatic switch-off function for power-saving. *Dimension: 58mm*36mm*32mm