Start by setting up Guard in the Alexa app. Then say, “Alexa, I’m leaving” to set Guard to Away mode. Get Smart Alerts: Alexa can send you Smart Alerts, via phone notifications, if your Echo device detects the sound of smoke alarms, carbon monoxide alarms, or glass breaking. Play the detected sound from your Alexa app, or Drop In on your Echo remotely to investigate what’s happening. Use Away Lighting: Alexa can automatically turn compatible smart lights on and off to make it look like someone is home. Integrate with Ring or ADT: Alexa can arm your Ring or ADT security system. You can also choose to forward Smart Alerts you receive to Ring or ADT.