I have not checked the accuracy of its measurements. However, in terms of use, it is very easy and fast. For someone like me who is careless and does not check the tire pressure at the gas station, it is perfect. I chose it because it is an advantage that it works directly with batteries. It also attaches well and quickly to the tire. P.S. In tires that a colleague had inflated, the indication of the ingco was the same, so its readings are correct.