We've used two of these every so often over the past five years without any issues. It lives under the seat of each vehicle with an emergency patch kit. Anytime one of the cars needs air in the tire we usually just go for this due to it's convenience.Works just as well as it did day one, accuracy is close enough for car/bike tires (I think it's +/- 1 PSI on our units) that we haven't noticed.
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