Getting a fast pressure measurement is easy with this inexpensive 2 inch (51mm) dia. gauge. The easy to read dial has a 0-30 psi (0-2.06 bar) range and is divided into 30 1-lb increments with six 5-lb. benchmarks. It’s designed so you can read it from any angle and still get a reliable measurement within one pound. Each gauge comes with a solid brass snap on chuck for fast, secure installation.