Let's get one thing straight first. This Longacre sensor is part of their cheaper line, so don't expect super high quality. Other than that, once you get past the cheap packaging, it's decent. Got this to replace a cheap digital meter that didn't have replaceable batteries. I have another Longacre high precision digital sensor and based on my good experience with it I chose this one. I keep it in our cabin so it's not used often and only when I'm spending time there. This sensor works well but appears to be a lot cheaper than its higher-end devices. The button doesn't feel as comfortable, the hose is of poorer quality and the display is much smaller. So far it does its job quickly and with the release valve it allows you to quickly release the pressure to the right pressure (for regular cars, not trucks). This works well as a main caliber, although a bit more expensive than most people would be comfortable with, reason for 4 stars: cheap packaging, small caliber footprint, no case, cost, and 0.2lb accuracy (vs. 0.1 Lb) . for their pricier devices) Overall, this is a good sensor from a good company, but don't expect super high-end.