Display SpO2, PR | Battery Type: 3.7v (1000mAh) Rechargeable Lithium Batteries |
Working Voltage: DC 3.4v ~ DC 4.3v | Free App: "BerrySmartHealth" |
SpO2: Measurement range: 35% - 100% Accuracy: ±2% (80% - 100%) ; ±3% (70% - 79%) | Pulse Rate: Measurement range: 25 - 250bpm Accuracy: ±2bpm |