nubeca PO8201 Owner's Manual page 16

STEP 5. When the desired setting is displayed on the screen, press
enter heart rate upper limit setting. The factory default is off.
STEP 6. Press
the number from 105 BPM to 250 BPM.
When the setting value goes to the upper limit, press
the screen will turn back "OFF" setting.
button to change settings. You can press
16
button to
button to increase
button again and