Garmin recommends you secure your bike on a stand while installing the sensor.
Garmin 520 speed sensor battery.
Speed sensor and cadence sensor specifications.
Speed sensor and cadence sensor specifications.
Replacing the speed sensor or cadence sensor battery.
Battery type user replaceable cr2032 3 v battery life approximately 12 months 1 hour per day operating temperature range.
Locate the circular battery cover on the back of the sensor.
Replacing the heart rate monitor battery.
Caring for the heart rate monitor.
Replacing the speed sensor or cadence sensor battery.
Place and hold the speed sensor on top of the wheel hub.
Cadence is your rate of pedaling or spinning measured by the number of revolutions of the crank arm per minute rpm.
Replacing the heart rate monitor battery.
If no speed and cadence sensors are paired with the device gps data is used to calculate the speed and distance.
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 the led flashes red to indicate a low battery level after two revolutions.
Pull the strap around the wheel hub and attach it to the hook on the sensor.
Caring for the heart rate monitor.