Dash Compass

When I installed the new Faria 3 in one depth gauge that tells air and water temp along with depth. I now have a gauge that's redundant. I have always wanted a dash mounted Compass. I have a 3inc hole that will accept such gauge. I see that Ritchie seems to be the only gauge that looks like it will fit the bill. I was wondering what to look for or if anyone had any advice? This is what I was looking at

BTW im not trying to navigate the 7 sea's or anything so it dosent have to be crazy or anything I just thought it would be interesting at times when your all turned around and backwards to see what direction your actually going ect.