Faria Euro White 2" Oil Pressure Gauge (80 PSI)Euro White 2" Oil Pressure Gauge (80 PSI) Perimeter lighted White dial with bold Black graphics, Black aluminum bezel, contoured White pointer and flat glass lens. A pressure gauge operates by sending a low amperage current through the gauge's meter to ground via a sending unit with variable resistance. The resistance of the sending units increase or decrease with the changes in pressure, temperature, etc As the sender's resistance varies, the amount
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