Silentaire Sil-Air 100-24 Ultra-Quiet Compressor has gauges for the line and tank that measure pressure It also has a safety valve for extra precaution against accidental overfill or injury. The Sil-Air 100-24 also has a carrying handle and wheels that make it easier to move from place to place. It also is compact enough to store in the corner of a garage or the back of a truck. This noise-free air compressor runs automatically and has a built-in moisture trap. This heavy-duty machine has a durable, reliable ½ horsepower pump and a 6-gallon tank capacity. It weighs 152 pounds, and uses 110Volts/60Hz of power, and it is built with long-lasting performance in mind. This unit has an oversized shipping charge of $139.00