 Yes. All right, 457 hasn't come back. That's kind of strange. I thought it was very strange. Yeah, you wonder what that's about. It might have been a loose cap cap. I don't know. Yeah, and it could have been, right. Then why the 451? But we can guess from now until tomorrow. So let's finish the test like you want to do. An FTP, for everybody else's information, is just a three-wire sensor, right? We've got a five-volt reference, we've got a ground, and we've got a signal return.