You will first need to make the rotary dial is set to the "N" position.
- -Press the dedicated "Tone" button
- -Press the lower stimulation button to Calibrate the compass
- -Follow directions on display and rotate the Pro 550 + in a figure 8 motion
Once the compass has successfully calibrated you will see a check mark on the display verifying the calibrated.
Note- make sure to reposition the rotary dial away from the "N" position to enable training.