* 1. Display Type: LED display.

*2. SpO2: Measurement range: 70%～99%Accuracy: ±2% on the stage of 80%～99%±3% on the stage of 70%～79%Below 70% no requirementResolution: ±1%.

*3. PR: Measurement range: 30BPM～240BPM.

*4. Power: Two AAA 1.5V alkaline batteries.

*5. Power consumption: Below 30mA.

*6. Automatic power-off: The product power off by itself when no finger is in the product ≥8 seconds..

*7. Dimension: 58mm×36mm×33mm.

*8.Declaration: The EMC of this product complies with the IEC60601-1-2 standard.