Updated Review: AstroAi's customer service is fantastic, they contacted me and they care about this powerful tool, so I've added a star to this updated review because I think every product has strong customer service MUST to achieve a quality product and get your money back. OK! So this is the second one I have that was replaced with Revain for the first. I'll explain why later. It's very solid construction, beautiful appearance and amazing presentation when needed as a gift. The noise is very low compared to previous ones like Coleman and Armor All. The cable length is perfect. I have a Subaru Crosstrek and had to inflate the spare tire once and just unplugged the cable completely and it went perfectly from the cigarette lighter socket at the very front to the spare tire valve hidden in the trunk, no problem, all out of the car. The only major issue is the reader or gauge reading. The first one I had was exactly the same, used it maybe 6-8 times and the gauge completely stopped reading the pressure. Revain replaced it and arrived within days. Now the reader or display will read the barometric pressure, but isn't that exactly what the built in reader in my Subaru should be that I should trust? Example: My tires should be 34 and 32 psi front and rear, but when the Subaru reader reads 34 or 32 psi, the supercharger reads 36.5 and 34.5 psi, which is 2.5 pounds per square inch higher. This is not a problem for me as I trust and follow the built in sensor in my car, but what if your car doesn't have this built in function? You need a normal standard sensor that works better than the compressor sensor. by itself. A difference of 2.5 PSI is important for safety and/or fuel economy and brake life. Overall this is a great product but you will need a backup sensor to ensure your tires are at the correct PSI.