![Close-up shot of the back of the Google Nest Protect smoke and carbon monoxide alarm, showing Energizer batteries in the battery compartment, in Lafayette, California, December 6, 2020 Stock Photo - Alamy Close-up shot of the back of the Google Nest Protect smoke and carbon monoxide alarm, showing Energizer batteries in the battery compartment, in Lafayette, California, December 6, 2020 Stock Photo - Alamy](https://c8.alamy.com/comp/2DP205G/close-up-shot-of-the-back-of-the-google-nest-protect-smoke-and-carbon-monoxide-alarm-showing-energizer-batteries-in-the-battery-compartment-in-lafayette-california-december-6-2020-2DP205G.jpg)
Close-up shot of the back of the Google Nest Protect smoke and carbon monoxide alarm, showing Energizer batteries in the battery compartment, in Lafayette, California, December 6, 2020 Stock Photo - Alamy
Google Nest Protect 2nd Generation Smart Smoke and Carbon Monoxide (CO) Battery Alarm, White | Canadian Tire
![Nest Protect smoke detector: A review of the new device from the thermostat company Google just paid $3.2 billion for. Nest Protect smoke detector: A review of the new device from the thermostat company Google just paid $3.2 billion for.](https://compote.slate.com/images/28ec73c0-7c58-4760-a052-fd7726a9740d.jpg)
Nest Protect smoke detector: A review of the new device from the thermostat company Google just paid $3.2 billion for.
![Nest halts sales of Protect smoke and carbon monoxide alarm on safety fears | Technology | The Guardian Nest halts sales of Protect smoke and carbon monoxide alarm on safety fears | Technology | The Guardian](https://i.guim.co.uk/img/static/sys-images/Guardian/Pix/pictures/2013/10/8/1381236362602/23d17d93-0282-42f9-b922-ceaae4fe7495-620x372.jpeg?width=465&quality=85&dpr=1&s=none)