Expand the life of your ties and optimize your gas mileage with the Freeman FATDTI Digital Tire Inflator with LCD Pressure Gauge. It makes it easy to frequently check the pressure of your tires. Simply connect the inflator to your tires using the brass clip-on chuck to measure pressure in increments of 0.1 PSI or switch to KPA, Bar or Kg/sq.cm. When used alongside a pneumatic compressor, you can refill tires with an accuracy of +/- 1 PSI. The lock-on brass chuck adds a secure attachment to prevent air leakage, and the 20 in. flexible rubber hose and swivel hose connector make it easy to use the inflator in tight spaces. Squeeze the pistol-style trigger to inflate your tires or release pressure by pressing and holding the pressure release valve until your reach your desired pressure. The Digital Tire Inflator with LCD Pressure Gauge is constructed of a durable, lightweight aluminum alloy and includes a rust resistant brass 1/4 in. NPT fitting and two AAA batteries.