Feel safe in and away from your home with this 2nd gen Google Nest Protect Battery Powered Smoke & Carbon Monoxide Alarm that you can control from your phone. This Nest Protect has an industrial-grade smoke sensor, tests itself automatically, lasts up to a decade, and it is the first home alarm you can hush from your phone without any extra hardware required. The Nest Protect provides voice commands and has 3 light indicators: red for emergency, yellow for heads up warnings and green means all your Nest Protects have tested themselves, the batteries are good, and there won’t be any chirps. You can test all of your alarms with a simple tap and once completed you will get a full report sent to your phone. Additionally, Nest Protect is the only alarm with Steam Check; it uses custom algorithms and a humidity sensor to look for steam, so you can enjoy a nice, quiet shower.