Suunto M2 User Manual

Page of 35
 TIP: Warm up before and cool down after exercices. These should be done with
low intensity (zone 1 or below).
8.1  Troubleshooting
Suunto M1/M2 uses coded transmission to prevent reading disturbances.
However, exercising near overhead power lines, magnetic or electronic devices
may cause interference with the HR signal.
If you lose the HR signal, try the following:
Check that you are wearing the HR belt correctly.
Check that the electrode areas of the HR belt are moist.
Move away from any potential sources of interference.
Replace the battery of the HR belt and/or the device, if problems persist.
16