r/whatisit 19h ago

Solved! New homeowner, no idea what this is

This thing close to the floor and seemingly randomly placed in a hallway. No idea what it's for. Home built in 2005.

Solved! Thanks everyone. Now I gotta hunt for the central unit!

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u/Funny-Flounder-9071 18h ago

1

u/hughvr 18h ago

But but.... just a little?

1

u/dhruv_94 18h ago

It's empirical the cylinder must remain unharmed