Buoyancy sensor?

[absentdenik (dauser)]

While scripting, I noticed “Buoyancy sensor” appear in Instance.new autofill, I didn’t even know it existed, since its hidden from creation menu. I haven’t found any posts about it on devforum, however theres a documentation page for it. What really catched my eye is

Is it a deprecated roblox Instance type or something in beta? It can only be added via Instance.new function.

[absentdenik (dauser)]

Explorer view, properties:

[imtherealdiamondman (Regret)]

however, this doesn’t exactly explain where or goes or why it is used, I’m trying to figure out where these go both buoyancy sensor and controllerpartsensor