Yolink Garage Door Sensor 2 User Manual page 22

Factory Reset
Factory reset will erase all your settings and bring it back to default. After the factory reset,
your device will still in your Yolink account.
Hold the set button of sensor for 20-25 seconds until the LED blinks red and green
alternately.
Factory reset will be done when the light stops flashing.
SET BUTTON
SET
20