I mean, you've you've covered it all, it seems like.

Well, I wouldn't say all of it.

I mean, I've covered a pretty big area, especially for the time I've been in the industry.

Definitely not all of it.

And if anybody says they've done everything, I'm sorry.

Good luck.

Because there's always something new out there.

The Walrus

The traverse with the mini vane in it?

Yes.

Yeah, you need to traverse with that.

So you can do multipoint or you can do a time traverse where you're drawing it across the whole area in there.

We'll talk a little bit more about traverses in a couple slides.

Pitot tubes, again, we use this for an in-duct traverse.

Does anybody not know what a traverse is on a duct? Anybody not done one? Couple of you? Good.

Yeah.

So go ahead, Eric.

I'm gonna call that out, and this is one of the really big things that I think most of our industry does not understand about vacuum gauges.

They do not measure pressure.

They display a pressure on the screen, but they're actually measuring heat transfer.

So as pressure is reduced, as we know when we pull a vacuum on things, we're removing the molecules, and this is how vacuum cups, like we all own Yeti cups and all these other things out there, they have a vacuum wall or an old vacuum thermos.

These work on a lack of molecules between two places, which reduces heat transfer.

So a vacuum sensor that we're using in the field today is an electronic temperature measurement, and it translates that into a pressure measurement.

So top left is ice, in the V is water, to the right is vapor.