Battery type user replaceable cr2032 3 v battery life approximately 12 months 1 hour per day operating temperature range.
Garmin 520 speed sensor battery.
Replacing the heart rate monitor battery.
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.
Cadence is your rate of pedaling or spinning measured by the number of revolutions of the crank arm per minute rpm.
Speed sensor and cadence sensor specifications.
Replacing the speed sensor or cadence sensor battery the led flashes red to indicate a low battery level after two revolutions.
Caring for the heart rate monitor.
Same method applies to any garmin sensor.
Caring for the heart rate monitor.
Garmin recommends you secure your bike on a stand while installing the sensor.
Locate the circular battery cover on the back of the sensor.
Speed sensor and cadence sensor specifications.
Place and hold the speed sensor on top of the wheel hub.
A walkthrough of how to change the battery on a garmin speed sensor.
Replacing the speed sensor or cadence sensor battery.
Cadence data from the cadence sensor is always recorded.
Replacing the speed sensor or cadence sensor battery.