X Sense FS51 5 Pack of WIFI Smart Smoke Detectors

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[@randyreviews]

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Buy It Here: amzn.to/3YwsO61
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Click Like & Subscribe for updates on new products
Randy's Amazon Storefront - amzn.to/3wWZ19w
As an Amazon Associate I earn from qualifying purchases

[@cg3570]

What type of battery does this use and is it replaceable or do you need to replace the whole smoke detector

[@randyreviews]

The battery is totally replaceable. It uses a 3 volt "CR123A" battery. They are pretty common.