KTI's digital air inflator features a rugged die-cast body and a range of 2 to 150 psi with 0.1 psi resolution. It is programmed to work with various units of measurement (psi/bar/kpa/kg/cm2) and works on TPMS equipped wheels. Features include a large face LCD digital display, anti-oil rubber casting and ergonomic grip. Boasts a dual head chuck and is accurate to within ?1% + 0.5psi at 100psi and ?2% + 0.5psi at 150psi. Backlit monitor is powered by two replaceable 3V lithium batteries.