- Insert two AAA batteries according to the positive and negative signs in the battery compartment and close the battery cover.
- Open the finger clip pulse oximeter clip
- Insert your finger into the rubber channel (finger fully extended) and release the clip
- Click the switch button on the front panel
- Don’t shake your fingers and the human body should not be in motion during use.
- Read relevant data directly from the display, which can show blood oxygen saturation, pulse rate and pulse amplitude, PI perfusion index
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