Have you paired the sensor?

• The sensor must be paired with Cateye Cycling™ or with smart computer.

​ When measuring in Mirror Mode

​ When measuring in Sensor Direct Mode or using smart computer by itself

​

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.