Garmin recommends you secure your bike on a stand while installing the sensor.
Garmin edge 520 speed sensor not working.
Like i said probably not your issue but that was my problem.
Replacing the heart rate monitor battery.
Caring for the heart rate monitor.
Heart rate monitor specifications.
Anyway i also had trouble with my garmin speed sensor when i first got my garmin edge 800.
Bring the device within 3 m 10 ft of the sensor.
Place and hold the speed sensor on top of the wheel hub.
Speed sensor and cadence sensor specifications.
I was riding a trainer and had issues with speed dropping off until i figured out that i need to turn off the gps to make the speed from the magnet work.
Http amzn to 2ii7pko this video was shot with this gear.
Dual lens dash cam records in front and inside your car providing complete coverage around the driver.
Garmin support center is where you will find answers to frequently asked questions and resources to help with all of your garmin products.
Pairing is the connecting of ant wireless sensors for example connecting a heart rate monitor with your garmin device.
Garmin dash cam tandem.
Pull the strap around the wheel hub and attach it to the hook on the sensor.
Stay 10 m 33 ft away from other riders ant sensors while pairing.
Http amzn to 2igzzeh garmin edge 520 computer.
Cadence data from the cadence sensor is always recorded.
Garmin speed cadence sensor combo.
If no speed and cadence sensors are paired with the device gps data is used to calculate the speed and distance.