Magene H603 Manual Download Page 3

*To avoid errors in the collected heart rate data, make 
sure to place the heart rate sensor in the proper 
direction. Wear the heart rate monitor directly on your 
skin, just below your chest. It should be snug enough to 
stay in place during your activity

2. Align the buckle on the left side of the sensor with the 
mother buckle on the chest strap.

Wearing the Heart Rate Sensor

3

1. Wet the electrode areas on the reverse side of the 
strap.

4. Align the buckle on the right side of the sensor with 
the female buckle on the chest strap, and the electrode 
is close to the skin. 

Placement Illustration for Men

Placement Illustration for Women

5.After the sensor is properly worn, it will automatically 
turn on, the front LED flashes (turns off after 10 times), 
select the correct ANT ID or Bluetooth ID on the bike 
computer, watch, and APP, and the heart rate data will 
be transmitted

3. Wrap the chest strap around your chest and adjust 
the length to a comfortable position. 

LED

ANT ID

Bluetooth ID

20136-169

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