Acme Automotive A567 Truck Digital Dual Foot Tire Pressure Service Gauge 2-150PSI Large backlit display is easy to read in both sunlight and low-light conditions Replaceable batteries (LR44 Alkaline) For measuring the air pressure of a car or truck tire from 2-150 PSI, +/- .5 PSI accuracy Four different units of measure (PSI, kPa, BAR, and kgf/cm2) Swivel extension for greater maneuverability in dual wheels, enabling easy checking of tire pressure from any angle