“I have eight (8) smoke detectors at my house. Do I need to replace all of them with Google Nest? Units are hard wired.”

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• Most likely, your 8 current alarms are inter-connected through a red wire attached to each. If one alarm sounds, so will the other 7. If you replace one with a Nest smoke alarm, you will lose the connectivity with the other 7 alarms. For what it’s worth, I replaced my home’s 7 alarms with Nest alarms, which are connected wirelessly. It was worth the expense. Good luck.

  Answered by PaulM 6 years ago

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• You don't have to replace all your smoke detectors with Nest Protect, they can work independently. But if you want to have an interconnected system of smoke alarms in your home, you can consider replacing them with Nest Protect and control them your Nest Protects in the Nest app. You can take a look at this support article about why having your smoke alarms interconnected is better than standalone smoke detectors here: https://support.google.com/googlenest/answer/9244978

  Answered by Nest Support 6 years ago

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