Specifications
English 11
F. WEARING MIO IN WATER & LOCKING
THE HEART RATE SENSOR
To prevent triggering the Smart Touch Heart Rate feature from accidental read-
ings due to contact with water or some clothing materials use the Heart Rate
Lock feature. Because water is a conductor, it will activate the HR function.
To protect the battery’s life while swimming or showering (although wearing
in the shower/bath/sauna is not recommended) always use MIO’s Heart
Rate Lock.
- To turn the HR Lock on: in any MODE press and hold START/STOP for 3
seconds. The HR lock icon will display.
- To turn HR Lock off: first dry the watch by towel, then repeat the step above.










