Wow, that IS a lot of dil! OK, I guess that makes more sense...
Right, I understand, I was just talking about why I wouldn't want that display there in the first place. But if you are using dil at that rate, I can see why you might want to be able to check it..
I did a straight week of diving down in NC last month on the rEvo. Blown out one day, so 12 dives (2 per day), each about an hour. Pretty much all at 110 - 115 feet. There, I was using more like 1200-ish (I think - maybe 1500) psi of dil for the whole day. But, swimming around the local lake going up and down constantly between 20 and 40 feet for a couple of hours and I burn through it a lot faster.