Measurement trouble: Cannot measure heart rate
Cannot measure heart rate (H icon is not shown)
Have you paired the unit with the sensor?
• Pairing must be performed in order to use a sensor.
The heart rate sensor battery may be flat.
• Replace the battery with a new one.
* For details on replacing CATEYE sensor batteries, refer to the sensor’s online manual.
Important
If using a Bluetooth® sensor, heart rate values start flashing to indicate that it is time to replace the battery.
The heart rate sensor may not be attached correctly.
• Refer to the heart rate sensor instruction manual and attach the heart rate sensor in the correct position.
* For information about the CATEYE sensor, refer to the sensor’s online manual.
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