Getting Started

Tab

Heart Rate Monitor Strap

Slot

Heart Rate Monitor (Front)

Sensors

Heart Rate Monitor (Back)

3.Wrap the strap around your chest and attach it to the other side of the heart rate monitor.

note: The Garmin logo should be right-side up.

4.Press quit or enter to exit power save mode.

5.Bring the Forerunner within range (3 m) of the heart rate monitor.

The heart rate icon appears on the training mode pages.

6.If heart rate data does not appear or if you have erratic heart rate data, follow the tips on page 32. If the problem persists, you may have to pair the sensors again. See page 31.

Tip: Set your maximum heart rate in Settings > User Profile. Use Garmin Connect to customize your heart rate zones.

Forerunner 405 Owner’s Manual