I replaced our two bedroom smoke detectors. The new ones have sealed 10 year batteries so no flimsy 9V cartridge to deal with. Love that these new First Alert detectors activate upon attaching to their mounts. Painless.

I replaced our two bedroom smoke detectors. The new ones have sealed 10 year batteries so no flimsy 9V cartridge to deal with. Love that these new First Alert detectors activate upon attaching to their mounts. Painless.
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