Nest Protect has been redesigned from the inside out. It has a Split‑Spectrum Sensor, tests itself automatically and lasts up to a decade. It’s also the first home alarm you can hush from your phone without any extra hardware required. And it tells you what’s wrong and can even alert your phone.

• The smoke alarm that other alarms look up to.
• Nest Protect has a friendly human voice that gives you an early warning. That way you can jandle burning toast before it becomes a burning toaster.
• Tells you where the danger is and when one speaks, thet all speak. So the alarm in your bedroom can tell you there's smoke downstairs.