Shelly Plus Smoke - Control Button Functions

3 red light flashes
3 short beeps
Alarm:
Continuous red light flashes
Continuous loud beeps
Low battery warning:
Red light flash once every 53 seconds
Short beep once every 53 seconds
Malfunction:
Red light flash twice every 53 seconds
No sound
Hushed alarm:
Red light flash once every 10 seconds
No sound (for about 10 minutes)
Hushed low battery warning:
Red light flash once every 53 seconds
No sound (for about 12 hours)
Control button
Press and hold for 3 sec to test the Device.
Press briefly to silence an alarm.
Press briefly 3 times to put the Device in Setup mode for 2 minutes.
Press briefly 5 times to factory reset. The Device stays in Setup mode for 2
minutes.