Battery-Powered Smoke And CO2 Alarm - WH

Features :

• Smoke detector and carbon monoxide detector that speaks up in a friendly voice to give you an early warning when there’s smoke or CO in your home
• Split Spectrum Sensor looks for both fast burning and smoldering, and tells you where the danger is
• With App Silence you can silence the smoke alarm with your phone in the Nest app when there’s only a little smoke