It also comes with a very elegant case, looks like glasses case!

Remember, measure your tire pressure with cold tires, if you have just parked your car after a trip over 20 minutes, the tires will be filled with hot air, so the pressure will be more than normal (maybe 1-4 pounds, depends).

Battery wore out in 2 months; extremely hard to use guage (Rating: 1.00)
Review : 2 months in and the battery for the back lit display is dead!! Hard to believe it only lasted that long ... I could just change the battery, but why? The guage itself is incredibly hard to get on the stem without hearing the hiss of air escaping your tires. Every now and then, I'd get a perfect lock the first time, but it's rare and hard to do.

I don't know about the accuracy ... I have a pen style guage that always show 2 pounds more pressure per tire than this digital model.

I have an Evo VIII, and tire pressures greatly influence the handling of the car, so I wanted a top quality guage. Unfortunately I got a guage that looks really nice, but is too hard to use and wore out too fast.

A must have item... (Rating: 4.00)
Review : The best tire gauge I've ever used. Gas station airpumps, when they had meters, were inaccurate at best. Now they charge you for air, and you must bring your own gauge. (I bought an aircompressor, but I digress...) Plastic or metal, dial or stick gauges are not accurate either. Mine are at least 2-4lbs off from what the accutire reads. The accutire is cool looking, cool to use, and easy to use and read. My only negative is that I wish it had a longer hold period or a permanent hold with a manual zeroing of the reading. This item costs more than other gauges, but it pays for itself in the long run in more accurate readings hence, longer tire life if you check pressure regularly to maintain proper inflation.