New fire alarm device, everything is included, never been turned on or used. For sale for 600. Features: Know from anywhere. Connect Nest Protect to Wi-Fi and it will send an alert to your phone if the alarm goes off. It tells you what and where. It speaks to tell you if there is smoke or carbon monoxide and where the problem is, so you know what to do. Silent application. Nest Protect is the first alarm you can silence from your phone. Just go to the Nest Protect that noticed the problem and open the Nest app. Split-spectrum sensor. In emergencies, count the seconds. Nest Protect uses two wavelengths of light to detect fast and slow fires. Heads-up. Get a friendly voice alert so you can deal with burnt toast before it becomes burnt toast. 10-year carbon monoxide sensor. Carbon monoxide is odorless, invisible, and deadly. When there is carbon monoxide, Nest Protect tells you where it is hiding.