I really like the digital pressure gauge which can be preset. For a high pressure tire this enables me to do other things while the tire inflator is running as it automatically shuts off when it reaches the pre determined pressure. This is nice for car and truck tires as well. I have a utility trailer and when I need to top off the air pressure not only is the pre-setting of the pressure nice to have, Porter Cable's little tire inflator when used with the battery enable me to reach the trailer tires without having to unhitch my vehicle to use the 12 volt cord.
As my Dome workshop is solar powered this handy little tire inflator from Porter Cable has been a welcome addition with ability to perform on the 12 volt plug and cord supplied with product or off of the 18 volt Lithium ion battery, which must be purchased separately. Since I have owned a set of Porter Cable power tools for a couple of years now I already had a couple of batteries. However, Porter Cable has enabled this product to run off of either the older ni cad batteries or the newer more pricey lithium ion batteries and have thoughtfully provided a single battery charger for both types of batteries with the PORTER-CABLE PCXMVC Multi-Chemistry Slide Pack Charger.
Other accessories which come with that product are ball needle, and second hose with airport for filling air mattresses or yoga balls with various sized plastic tips.