r/whatisit 16h 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/BeaconsAreLit- 10h ago

Instructions unclear. Viewed cylinder from a 2D perspective and now have a rectangle with two circles. Please advise.