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Switching to Sensor Direct Mode

Pairing a smart computer with a sensor

Pair a sensor that you want to use with smart computer.


• Pairing (sensor ID synchronization) must be performed in order to use a sensor.

• Do not pair sensors at a race venue or in similar locations where there are a lot of other users. Doing so may cause the smart computer to be paired with another device.

Pair all sensors and similar devices that you intend to connect.

• Pairing a Shimano DI2 system must be performed using a smartphone.

• During pairing or when connected to a smartphone, if sensor information is stored in Cateye Cycling™, this information is written to the smart computer.

Pairing a sensor or a Shimano DI2 system with a smartphone

1. From the measurement screen, press OPTION for 2 seconds to switch to the sensor pairing screen.

(2 seconds)Sensor pairing screenMeasurement screen

* When the sensor pairing screen is left on for 1 minute, the smart computer returns to the measurement screen.

2. Press SS/LAP to start pairing.

3. Activate the sensor that you want to pair.

Activating the sensor

Sensor activatedSynchronization completeReady for synchronization


The name of the synchronized sensor is displayed and pairing is completed.

SP : Speed sensor

ISC : Speed/cadence sensor

CD : Cadence sensor

HR : Heart rate sensor

PW : Power sensor

* When pairing a sensor with a smart computer, a "C" is displayed after the sensor name.


When the smart computer displays [ID FULL] on the screen and returns to the sensor pairing screen, the maximum number of sensors have been paired.

Up to 9 separate sensor IDs can be paired with the smart computer.

If the maximum number of sensors have been paired, in the sensor pairing screen, press OPTION for 4 seconds to clear all pairings.

Then re-pair the required sensors.

* Pairing standby time is 5 minutes. Activate the sensor within this time.

* If you want to pair another sensor, repeat steps 2 and 3.


4. Press OPTION to return to the measurement screen.

Pairing is now complete.

If you have paired a sensor capable of speed measurement, proceed with setting the tire circumference.

Tire circumference setting