As you might expect, however, that's not quite as simple as a firmware upgrade, and currently requires a 34-node network to keep watch on a standard living room, which is apparently enough to pin down moving objects within a meter or so.

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Users can now view multiple rooms, to keep an eye on the nursery, kitchen, living room, and entryway all from one screen.

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Until about two weeks ago, the family had been living without heat or hot water, relying on electric heaters to keep warm and showering at friends' homes.

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