VEI Systems Dual-Display Gauge: 150 PSI Fuel Pressure and 27.5V P.O.L. Voltmeter (Orange/Silver) NOTE: currently backordered. Please note significantly longer lead time. 0-150 PSI fuel pressure with 1-PSI resolution; 0 to 27.5V voltmeter Includes 150 PSI active fuel pressure sensor with pigtail connector 2-1/16" (52mm) mounting size. Adjustable day and night brightness