OLED Finger Pulse Oximeter, O2 Meter

Blood oxygen measurement range: 70% -100% 

Heart rate measurement range: 25-250 Data display time measurement starts: 7 seconds 

Data stabilization waiting time: 40 seconds 

Product Weight: 52g Space to store fingers: 8-35mm 

Display: up, down, left and right four directions Screen: OLED color screen Theoretical waiting time: 40 days

 Power supply: 2 AAA batteries