![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
![Nest Protect 2nd Generation Smoke + Carbon Monoxide Alarm (Battery) [French Version] : Amazon.co.uk: DIY & Tools Nest Protect 2nd Generation Smoke + Carbon Monoxide Alarm (Battery) [French Version] : Amazon.co.uk: DIY & Tools](https://m.media-amazon.com/images/I/710xOhleEIL._AC_SL1500_.jpg)
Nest Protect 2nd Generation Smoke + Carbon Monoxide Alarm (Battery) [French Version] : Amazon.co.uk: DIY & Tools
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