Accurately measuring and recording edge bevels is necessary to match or select proper dedicated edge guides or mult-angle guide tools & settings for efficient edge work. This will give you a point of reference in making adjustments relative to skiing or boarding feedback, or for maintaining consistency while maintaining sharp and smooth edges. 
It’s a good idea to measure and record the edge angles of new ski or snowboards so you know where they were when you got them. Later, you’ll be glad you did.
As a precision base and side edge bevel meter from SVST, the Pro Bevel Meter snaps to the metal edge with a strong magnet that then quickly and accurately rotates the finely machined tool meter and shows you your side or base bevel angles. This sets the standard for precision measuring, ease and speed.
Also a finely machined tool, a machined side edge bevel meter, can be placed against the base of the ski and quickly measures the side edge with (4) preset angles: 1 thru 4° (89 thru 86°/SVST 91° thru 96°). As with all measuring devices placed against the edge, requiring visual clues of the tool relative to the edge, good visibility and backlighting is necessary to compare the edge to the tool. Magnify glasses help in the visibility department.
(Note: the side edge angles 0, 1, 2, 3, 4, etc are the angles cut inward from the side edge relative to a 90° degree corner. Thus, the European standard is 90, 89, 88, 87, etc, while SVST/US standard is the dedicated edge guide designation to create the side edge bevel, 90, 91, 92, 93, 94, etc.)
Base bevels are simpler in that they are designated relative to flat: 0, 0.5, 0.7, 1.5, 2, etc….
The most common bevel angles are 1° base bevel & 3° side bevel. Designations always should include base bevel angle first, followed by side edge angle: 1:3 for 1° BB & 3°SB, for example.)
Metal or plastic protractors can also be used 
as can T-bevels, coupled with protractors to return reasonably accurate measurements, but require extra care and time to assure a good measurement. 
The plastic protractors require extra care as the sharp ski or snowboard metal edge can modify the plastic protractor edge.
A very handy way to see if you have a match to your edge guide is to run a marker of some sort along the 
edge, leaving a thin ink film. By running your guide over the ink with a fine stone (to minimize edge material removal), the removal of all the ink will indicate a match or near match, while ink removal on one side of the edge or 
the other will indicate there isn’t a match and you’ll be able to determine if the guide is too steep or shallow relative to the edge.
A reliable multi-angled tool is very useful for this as a low cost measuring device used in this manner, since you can try 
different angles and zero in on the angle the edges are.
Another method for measuring the base edge bevel is to use a true bar and measure the height 
or use feeler gauges at 60mm to determine the angle. As the following graphics show, it is actually 57.3mm 
mathematically, for the given heights, but 6omm is generally considered acceptable since it is easier to remember (and marked on the above true bar, from the right edge).