Sealed New Google Nest Protect Wired Smoke and CO Alarm

Google Nest Protect wired 120V smoke and carbon monoxide alarm. It's a smart device that sends alerts to your phone and speaks with a human voice. Includes backup batteries and mounting hardware. Dimensions are approximately 13.5cm x 13.5cm x 3.9cm or 5.3" x 5.3" x 1.5".