Replacing the Speed Sensor or Cadence Sensor Battery
The LED flashes red to indicate a low battery level after two revolutions.
Locate the circular battery cover on the back of the sensor.
- Twist the cover counter-clockwise until the marker points to unlocked and the cover is loose enough to remove.
- Remove the cover and the battery .
- Wait 30 seconds.
- Insert the new battery into the cover, observing polarity.
- Twist the cover clockwise until the marker points to locked.