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Measurement does not work :
Cannot measure heart rate

  • Why isn't the [H] icon flashing?

    Have you paired the sensor?

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

    Pairing a sensor or a Shimano DI2 system with a smartphone

    The electrode pad may have slipped out of position.

    • Check that the electrode pad is still in close contact with your body.

    Your skin may be dry.

    • Wet the electrode pad a little.

    The electrode pad may have deteriorated or become damaged due to prolonged usage.

    • If this is the case, replace the attachment belt with a new one.

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