I have and old...very old...Loos gauge, which I want to throw out.
http://www.binksonline.com.au/store/images/loos%20gauge%20sm.jpg

I also have a nice newer different model Loos gauge, which I want to use. http://www.stargear.net/images/Products/Misc%20Items/Loos%20Gauge.jpg

Problem is how to convert info/data from the old style to the newer model

Can anyone tell me how to convert?

In other words, 34 on the old loos means what on the new?