SUUNTO QUEST - Manual (Page 18)

TIP: Warm up before and cool down after training.
7.1 Troubleshooting: No 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.
● Replace the battery of the HR belt and/or the device, if problems persist.
NOTE: Suunto Quest cannot receive the HR belt signal under water.
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