The Ascot Supply Co. TPMS Black Plated Master Tire Gauge comes with an operating pressure range of 10-100 psi in 2-psi increments, with +/-0.5 psi accuracy. The tire gauge includes a two-sided plastic bar and has an angled chuck head for hard-to-reach places in the numerous tire and wheel configurations encountered by tire service personnel. The black-electro-plated coating is corrosion resistant for added longevity and durability.