Hi @hand123. Alexa Guard is a free feature available for supported Amazon Echo devices that can detect the sound of smoke alarms, carbon monoxide alarms, or glass breaking when you set Guard to Away mode. To make sure Alexa Guard is synced with your Ring Alarm in the Alexa app, follow these steps:
Open up the Alexa App
Tap on Guard
Tap on the settings icon on the top right hand side
Under Connect, select Sync Guard modes with Ring & more
Select your Ring Alarm
Let me know if these steps help with your concern!