JOES Racing Tire Pressure Gauge, 0-30 PSI, 2.500" Diameter, Analog

This Product Line utilizes a ‘Bourdon Tube’ design that includes a metal pressure tube along with a small gear rack. This technology is inexpensive and common in the vast majority of entry level gauges on the market today. The Bourdon tube design is susceptible to over-pressurization, accidental drop and vibration. They are best suited for occasional garage use, and they are the most affordable gauge Joe's offers.