Feature:

■ Display Format: LCD
■ Back light: LED
■ SPO2:35-99%
■ Pulse Ratio:30-255 BPM
■ Pleth Wave: LCD Graphic Display
■ Battery Voltage Low Indication: LCD Bar Graph
■ Power Requirements: Two AA size 1.5V Alkaline Battery;
■ Power Consumption: less than 20 mA.
■ Resolution: 1% for SPO2 and 1 BPM for Pulse Ratio.
■ Measurement Accuracy: ±2% in stage of 70%-99% for SPO2
■ Unspecified in stage of 35-69% for SPO2
■ ±2BPM or ±2%(Select Larger)for Pulse Ratio.
■ Measurement Performance in Low Perfusion: SPO2 and pulse＆#118alue can be shown correctly when pulse-filling ratio is 0.4%. 
■ Interference Resistance Capacity against Ambient Light : Deviation is smaller than ±1%
■ It is equipped with a function switch, through which the Oximeter can be automatically powered off when no finger is in the Oximeter more than 4 seconds.