1.10-50PSI 2.plastic 3.for heavy duty use with trucks and rv's 4.dual hesd reaches inside or outside tire gauge,inflating gun,air accessory,pneumatic tool,air tool ·Easy-to-read gauge shows both PSI and kpa·Built-in relief valve to reduce prissure in over inflated tires and to zero gauge·holds pressure reading until released10-50PSIContact:We will reply your email or fax within 24 hoursYou can ...