Sometimes Space Is Limited. The Autometer Quad Gauge Provides A Solution To Limited Dashboard Space While Providing A Clean Look. Individual Autometer Air Core Meter Movements For Each Function Provide The Accuracy And Durability Required By Even The Most Demanding Applications. Includes A Single Wire 1/8" Npt Temperature Sender And A 1/8" Npt Oil Pressure Sender. The Voltmeter Reads From 8-18V On Negative Ground Electrical Systems And Fuel Level Resistance Range Is 0 Ohms Empty To 90 Ohms Full (Compatible With Amid 60S Through Mid 90S Gm Fuel Level Senders).