Nest S3000BWES Nest Protect 2nd Gen Smoke + Carbon Monoxide Alarm, Battery

Know from anywhere. Connect Nest Protect to Wi-Fi and it will send an alert to your phone if the alarm goes off or the batteries run low.
Tells you what and where. It speaks up to tell you if there’s smoke or CO and where the problem is, so you know what to do.
App Silence. Nest Protect is the first alarm you can hush from your phone. Simply walk to the Nest Protect that noticed the problem and open the Nest app.