Frequently asked questions

What should I do if...

...the cadence reading is 0 or there is no cadence reading while cycling?

• Make sure the position and distance of the cadence sensor to the crank magnet are appropriate.

• Check that you have activated the cadence function in the receiving device. For further information, see the user guidance material of the receiving device or mobile application.

• Try keeping the receiving device in a bike mount on the handlebar. This may improve the connection.

• If the 0 reading appears irregularly, this may be due to temporary electromagnetic interference in your current surroundings.

• If the 0 reading is constant, the battery may be empty.

...there are irregular cadence or heart rate readings?

• Disturbance may occur near microwave ovens and computers. Also WLAN base stations may cause interference when training with Polar Cadence Sensor. To avoid erratic reading or misbehaviors, move away from possible sources of disturbance.

... I want to pair the sensor with the receiving device before installation?

• Follow the instructions in the user guidance material of the receiving device or mobile application. Instead of rotating the crank, activate the sensor by moving it back and forth close to the magnet. The flashing red light indicates that the sensor is activated.

How do I know...

... if the sensor is transmitting data to the receiving device?

• When you begin cycling, a flashing red light indicates that the sensor is alive and it is transmitting cadence signal. As you continue cycling, the light goes off.