Clemens, yes that is a similar tool and it is probably more accurate and less flexible.
I also use a magnetic level like Scooper, it's very practical. Are you sure the accuracy is 0.05 deg? The resolution is 0.1... Mine (a Fowler) has a resolution of 0.05 but the manual indicates an accuracy of +/- 0.2 deg in "zero-ed" mode.
Oops.
The retailer I bought it from had a data sheet that said accuracy is ±0.05°, but the Wixey website says ±0.1°. That could be interpreted to mean an accuracy to within 0.2°.
