The Leeo Smart Alert Nightlight is the only plug-in solution that connects you to your existing smoke and carbon monoxide alarms and alerts you via smartphone if the sound. If it detects your smoke or CO detector going off, the Leeo service will send you a message via the app, complete with a recording of the alarm sounding off. Calls friends and family for backup if you don’t respond to alarm notifications. It has easy setup, just plug it in and connect to your home’s Wifi.