What price range are you looking at? If you want a real 12v look at compressors like the ARB or BigRed but expect to pay from $190-$300. Anything else is a toy and will not stand the abuse of anything more than filling bike tires. Don't be fooled by high PSI ratings. You really need to look at air volume and how much time that compressor can run before having to turn it off to cool down.