Vintage Alignment Systems
That's the one I use
Careful. The instructions are sorta hard to follow. It gets confusing when you zero out the caster measurement. You have to relearn it every time you use it.
I think a regular analog Longacre bubble gauge with caster might be easier to set up and actually quicker.
I got the computer one because I thought I could get a dual use from the angle gauge for other house projects. .... been 7+ years and never have used it for anything else.:rolleyes: