Close as you will come to getting an OEM fuel sender..

Yes. The needle rotates as more current heats the bimetal. Redfish has explained this well.. somewhere..in some post.
I have read some horror stories about aftermarket senders. I can put up with some inaccuracy as long as the gauge reads close when it gets to empty. In a perfect world the gauge would read E with a gallon or so left in the tank.