Nest Protect 2 Carbon monoxide detector Interconnectable Wireless

<b>Get alerts on your phone.</b><br><br>Nest Protect sends a message when there’s a problem or the batteries run low.<br><br><b>Every second counts.</b><br><br>The Split­-Spectrum Sensor looks for both fast and slow-burning fires.<br><br><b>Hush from the Nest app.</b><br><br>Just burned the popcorn? Silence the false alarm with your phone, not your dish towel.<br><br><b>Tells you what and where.</b><br><br>Nest Protect speaks up if there’s smoke or carbon monoxide and tells you where it is, so you know what to do.<br><br><b>Easy installation.</b><br><br>Nest Protect takes only minutes to install and you can set it up from your phone.<br><br><b>Battery</b><br><br>Six long-life AA Energizer® Ultimate Lithium batteries<br><br><b>Wired</b><br><br>120V Connector<br><br>Three long-life AA Energizer® Ultimate Lithium backup batteries<br><br>- Nest Protect (Wired 120V)<br>- Three long-life backup batteries (Energizer® Ultimate Lithium "L91" AA)<br>- 120V AC connector<br>- Three wire nuts<br>- Backplate<br>- Four screws<br>- User's Guide<br>- Welcome Guide<br>- 2-year limited hardware warrantyNest Protect 2. Power source: AC, Input voltage: 120 V. Height: 38.5 mm, Width: 135 mm, Depth: 135 mm