Rotate to open the sensor
Use a coin or another tool to unscrew the battery cover
Power on the device
Long press the button for 5 seconds
Check LED indicator flashing status
(flashes slowly for 180s)
Rotate to open the sensor
Use a coin or another tool to unscrew the battery cover
Power on the device
Long press the button for 5 seconds
Check LED indicator flashing status
(flashes slowly for 180s)