Digital Voltmeters

[Dominator]

Well my reasoning for the back would be because while camping I would be in and out of the back more.

If you were parked up for a few days camping, how often would you go to the front compared to the back?

Maybe the one for starter would be more appropriate up the front but definitely the other 2 up the back

That's what I have done. I have one meter at the front for my start battery and one in the back for my aux battery. That way I can check my aux voltage every time I get a beer. So every 5mins