Never heard of that brand before, but they seem to make some nice stuff. I looked up the equivalent of a couple I have here, and list is quite a bit less. ($184.00) They are all made to the same standards with testing and conformity.
In industrial/process controls, we seldom use pressure gauges anymore. Maybe on a regulator, or in a few remote spots for a quick visual when walking by, but mostly ignored.
Need to know detailed info about the system, so use transducers instead. Some are better than others as well as the cards you hook them up to.
Anyway, if it's leaking, I would find out why? That don't sound right.