Luke Dordaiwrote a review of SKS Airchecker Digital Gauge/Pressure Regulator on November 4, 2017
Familiarity: I've put it through the wringer
I toss this in my glovebox when I go out for rides and use it to check pressure when I get to the trailhead. I'll inflate with my pump before we leave the house, but living in Utah, often times the trailhead is at a vastly different elevation than where the bike is prepped. Pop this thing on, double check pressure, and you are good to go.
Honestly, the unit does feel a bit on the cheaper side, but as long as you don't drop it a bunch and slam it around it works just fine.