Doug mentions both the Brunton and the Pyser, which is more expensive and harder to get. <br><br>Both have tradeoffs. The Brunton at least has some level of degree indication, but is not luminous. The Pyser is luminous, but has no degree markings. <br><br>The only place I know of to get the Pyser in the US is Triple Aught Design at tadgear.com, but I'm sure there are others. <br><br>Anybody here have any feeling about the Brunton Glow-Mate? I know it's not a "button" compass, but it might fit into a larger PSK.