• 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
• Get phone alerts so you know something's wrong even when you're away from home[1]
• CO detector looks out for carbon monoxide and tells you where it's located

Used. Item appears to be in used, excellent, working condition. Item speaks Spanish, language can be changed in the app. See images for item condition.  Everything included with this item can be seen in the images.