STEP 3. When the desired setting is displayed on the screen, press
enter SpO
STEP 4. Press
the number from 85% to 94%.
When the setting value goes to the upper limit, press
the screen will turn back "OFF" setting.
lower limit setting. The factory default is off.
2
button to change settings. You can press
Handheld Pulse Oximeter
15
button to
button to increase
button again and