Locate the circular battery cover on the back of the sensor.
Garmin 520 speed sensor battery.
Speed sensor and cadence sensor specifications.
Speed sensor and cadence sensor specifications.
Caring for the heart rate monitor.
Locate the circular battery cover on the back of the sensor.
A walkthrough of how to change the battery on a garmin speed sensor.
Cadence data from the cadence sensor is always recorded.
Replacing the speed sensor or cadence sensor battery.
Replacing the speed sensor or cadence sensor battery the led flashes red to indicate a low battery level after two revolutions.
Battery type user replaceable cr2032 3 v battery life approximately 12 months 1 hour per day operating temperature range.
Cadence is your rate of pedaling or spinning measured by the number of revolutions of the crank arm per minute rpm.
If no speed and cadence sensors are paired with the device gps data is used to calculate the speed and distance.
Replacing the speed sensor or cadence sensor battery the led flashes red to indicate a low battery level after two revolutions.
Replacing the heart rate monitor battery.
Replacing the speed sensor or cadence sensor battery.
Garmin recommends you secure your bike on a stand while installing the sensor.
Caring for the heart rate monitor.
Same method applies to any garmin sensor.