Includes an inflator/deflator hose with 160 PSI gauge for monitoring tire fill pressure， as well as bleeding off over pressure from tire inflation

Deluxe carry with zipper closure and snap-close folding cover and stowage compartment for the included inflator/deflator hose is included

Heavy duty battery clamps with 40 Amp inline fuse protect the 300P from amp spikes that can shorten service life

Maximum amp draw at peak pressure is 19 Amp (12-Volt)

Portable compressors with automatic shutoff come into play when moving from tire to tire， and when checking tire pressure in the middle of a tire fill. A typical portable compressor must be turned off between tire fills， and anytime you want to check tire pressure. If you aren't near the compressor， this can turn into running laps back and forth to the portable compressor to turn the unit on and off. Automatic portables do not work in this fashion and will save you time & effort to get tires inflated quickly.