I have several stick gauges but it sure is a pain getting to the NT's rear tire with a stick. So I bought a "Slime" brand gauge with a hose, for $12.99 at Autozone. The hose has two fittings at different angles, so you can pick the best one for your tire. I tried it for the first time this afternoon and it seems OK, though I'm not crazy about the idea of a gauge that has a full page of fine print instructions.
It's digital and most of this verbiage seems to be for setting the gauge up to know what pressure you want and beep at you. I'll never do that - I have too many different tires with different pressures needed. But it also has a recalibrating function, which is cool, hopefull that means it can be made accurate and kept accurate. And it seems to work well enough for just plain checking the tires and telling me what's in 'em.