Daystate Air Ranger Gauge.

Wika is the way to go. I like Edguns, but those Edmu gauges are not worthwhile. At least that was my experience with the one I received on a used Veteran I bought. Could have been sold to me defective, or could have gotten damaged in shipping (A-hole packed gun very poorly, & never made it right, but that’s another story) I also read the same advice from many folk, get the WIKA.